Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation of the Delaware Basin, Permian Basin Province, New Mexico and Texas

Home , Bone Spring Formation, Delaware Basin

Open-File Report 2020–1126

U.S. Department of the Interior U.S. Geological Survey

Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation of the Delaware Basin, Permian Basin Province, New Mexico and Texas

By Stephanie B. Gaswirth

Open-File Report 2020–1126

U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior DAVID BERNHARDT, Secretary U.S. Geological Survey James F. Reilly II, Director

U.S. Geological Survey, Reston, Virginia: 2020

For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit https://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov/.

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.

Suggested citation: Gaswirth, S.B., 2020, Structure contour and isopach maps of the Wolfcamp shale and Bone Spring Formation of the Delaware Basin, Permian Basin Province, New Mexico and Texas: U.S. Geological Survey Open-File Report 2020– 1126, 37 p., https://doi.org/10.3133/ ofr20201126 .

ISSN 2331-1258 (online) iii

Contents

Abstract ��1 Introduction ��1 Geologic Background ��1 Method Used to Generate Contour Maps ��1 References Cited ��2 Figures ��3

Figures

1. Map showing the Delaware Basin, Permian Basin Province, New Mexico and Texas, and the extent of the two Wolfcamp shale continuous gas assessment units. ��4 2. Map showing the Delaware Basin, Permian Basin Province, New Mexico and Texas, and the extent of the four Wolfcamp shale continuous oil assessment units ��5 3. Map showing the Delaware Basin, Permian Basin Province, New Mexico and Texas, and the extent of the five Bone Spring Formation continuous oil assessment units ��6 4. Type log from southeast Eddy County, New Mexico, showing the stratigraphic column of the Wolfcamp shale and Bone Spring Formation of the Delaware Basin ��7 5. Structure contour map of the top of the Wolfcamp D of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas ��8 6. Structure contour map of the top of the Wolfcamp C of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas ��9 7. Structure contour map of the top of the Wolfcamp B of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas ��10 8. Structure contour map of the top of the Wolfcamp A of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas ��11 9. Structure contour map of the top of the Third Bone Spring sand interval (Bone Spring 3rd sand) of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��12 10. Structure contour map of the top of the Third Bone Spring carbonate interval (Bone Spring 3rd Carbonate) of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��13 11. Structure contour map of the top of the Second Bone Spring sand interval (Bone Spring 2nd Sand) of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��14 12. Structure contour map of the top of the Second Bone Spring carbonate interval (Bone Spring 2nd Carbonate) of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��15 13. Structure contour map of the top of the First Bone Spring shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��16 14. Structure contour map of the top of the First Bone Spring sand interval (Bone Spring 1st sand) of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��17 iv

15. Structure contour map of the top of the Avalon lower shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��18 16. Structure contour map of the top of the Avalon upper shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��19 17. Structure contour map of the top of the Leonard shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��20 18. Isopach map of the Wolfcamp D, which is the interval from the top of the Strawn Formation to the top of the Wolfcamp D of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas ��21 19. Isopach map of the Wolfcamp C, which is the interval from the top of the Wolfcamp D to the top of the Wolfcamp C of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas ��22 20. Isopach map of the Wolfcamp B, which is the interval from the top of the Wolfcamp C to the top of the Wolfcamp B of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas ��23 21. Isopach map of the Wolfcamp A, which is the interval from the top of the Wolfcamp B to the top of the Wolfcamp A of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas ��24 22. Isopach map of the Third Bone Spring sand interval (Bone Spring 3rd Sand), which is the interval from the top of the Wolfcamp A to the top of the Third Bone Spring sand interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��25 23. Isopach map of the Third Bone Spring carbonate interval (Bone Spring 3rd Carbonate), which is the interval from the top of the Third Bone Spring sand interval to the top of the Third Bone Spring carbonate interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��26 24. Isopach map of the Third Bone Spring, which is the interval from the top of the Wolfcamp A to the top of the Third Bone Spring carbonate interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��27 25. Isopach map of the Second Bone Spring sand interval, which is the interval from the top of the Third Bone Spring carbonate interval to the top of the Second Bone Spring sand interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��28 26. Isopach map of the Second Bone Spring carbonate interval, which is the interval from the top of the Second Bone Spring sand interval to the top of the Second Bone Spring carbonate interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��29 27. Isopach map of the Second Bone Spring, which is the interval from the top of the Third Bone Spring carbonate interval to the top of the Second Bone Spring carbonate interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��30 28. Isopach map of the First Bone Spring shale interval, which is the interval from the top of the Second Bone Spring carbonate interval to the top of the First Bone Spring shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��31 v

29. Isopach map of the First Bone Spring sand interval, which is the interval from the top of the First Bone Spring shale interval to the top of the First Bone Spring sand interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��32 30. Isopach map of the First Bone Spring interval, which is the interval from the top of the Second Bone Spring carbonate interval to the top of the First Bone Spring sand interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��33 31. Isopach map of the Avalon lower shale interval, which is the interval from the top of the First Bone Spring sand interval to the top of the Avalon lower shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��34 32. Isopach map of the Avalon upper shale interval, which is the interval from the top of the Avalon middle carbonate interval to the top of the Avalon upper shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��35 33. Isopach map of the Leonard shale interval, which is the interval from the top of the Avalon upper shale interval to the top of the Leonard shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��36 34. Isopach map of the Avalon upper shale interval and the Leonard shale interval, which is the interval from the top of the Avalon middle carbonate interval to the top of the Leonard shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas ��37

Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation of the Delaware Basin, Permian Basin Province, New Mexico and Texas

By Stephanie B. Gaswirth

shale (informal name; age follows Hamlin and Baumgardner, Abstract 2012) and the early Permian Bone Spring Formation of the Delaware Basin in the Permian Basin Province of southeast A series of structure contour and isopach maps for New Mexico and west Texas (Gaswirth and others, 2018). The the Wolfcamp shale and the Bone Spring Formation of the Delaware Basin is the western subbasin of the Permian Basin Delaware Basin, Permian Basin Province, were generated in Province and is separated from the Midland Basin to the east support of the U.S. Geological Survey 2018 assessment of by the uplifted Central Basin Platform. undiscovered continuous oil and gas resources. The interpreted PRODFit subdivides both the Wolfcamp shale and the formation tops used to generate the maps are from the IHS Bone Spring Formation into stratigraphic units based on petro- Markit® PRODFit™ database, a commercial proprietary data- physical log signatures and landing zones for horizontal wells. base. The maps in this report are reflective of the stratigraphic The maps in this publication are reflective of the stratigraphic units on the IHS Markit type log from southeast Eddy County, units on the type log from southeast Eddy County, New New Mexico. Mexico, shown in figure 4 (IHS Markit, 2018).

Introduction Method Used to Generate Contour A series of structure contour and isopach maps for Maps the Wolfcamp shale and the Bone Spring Formation of the Delaware Basin, Permian Basin Province, were generated Elevation data for the top of the Wolfcamp and Bone from the PRODFit™ database (IHS Markit®, 2018). This is Spring horizons, as defined in figures 5–34, were obtained a proprietary database to which the U.S. Geological Survey from PRODFit (IHS Markit, 2018). In the database, records (USGS) subscribes. These maps were generated in support for 15,052 wells in the Delaware Basin contain depth to the of the USGS 2018 assessment of undiscovered continuous top of the Wolfcamp and Bone Spring units; however, the oil and gas resources in the Wolfcamp shale and Bone Spring number of data points available varied for each of the surfaces Formation (Gaswirth and others, 2018). That study was the mapped. Data points were put into ArcGIS and contoured first USGS assessment of continuous resources for these units using the Kriging contour method for the structure contour in the Delaware Basin (figs. 1–3; Gaswirth and others, 2018). maps and the isopach maps. Data points are not shown on The structure contour and isopach maps incorporate inter- the maps because of the proprietary nature of the IHS Markit preted formation tops data from PRODFit as of November 1, PRODFit database. Contour maps were clipped to the extent 2018 (IHS Markit, 2018). Maps published herein are for the of the data points that were used to create the contour lines. intervals that were assessed for oil and gas resources in the Isopach thickness maps for the units of the Wolfcamp shale Delaware Basin by the USGS. and Bone Spring were calculated using elevation data from the tops of units. Fewer data points were available for the isopach maps because data points from two surfaces were necessary to Geologic Background calculate unit thickness.

The USGS National and Global Assessment of Petroleum Resources Project completed a geology-based resource assessment of undiscovered, technically recoverable continuous oil and gas resources in the Pennsylvanian-Permian Wolfcamp 2 Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation

References Cited

Gaswirth, S.B., French, K.L., Pitman, J.K., Marra, K.R., Mercier, T.J., Leathers-Miller, H.M., Schenk, C.J., Tennyson, M.E., Woodall, C.A., Brownfield, M.E., Finn, T.M., and Le, P.A., 2018, Assessment of undiscovered continuous oil and gas resources in the Wolfcamp shale and Bone Spring Formation of the Delaware Basin, Permian Basin Province, New Mexico and Texas, 2018: U.S. Geological Survey Fact Sheet 2018–3073, 4 p. [Also available at https://doi.org/10.3133/fs20183073.] Hamlin, H.S., and Baumgardner, R.W., Jr., 2012, Wolfberry (Wolfcampian-Leonardian) deep-water depositional systems in the Midland Basin—Stratigraphy, lithofacies, reser- voirs and source rocks: Austin, Tex., The University of Texas at Austin, Bureau of Economic Geology, Report of Investigations No. 277, 61 p.

IHS Markit®, 2018, PRODFit™ database: Englewood, Colo., IHS Markit, accessed November, 1, 2018, at https://www.ihsmarkit.com. [Available from IHS Markit, 15 Inverness Way East, Englewood, CO 80112.] Klett, T.R., Ahlbrandt, T.S., Schmoker, J.W., and Dolton, G.L., 1997, Ranking of the world’s oil and gas provinces by known petroleum volumes: U.S. Geological Survey Open-File Report 97–463, 1 CD–ROM. [Also available at https://pubs.usgs.gov/of/1997/ofr-97-463/97463.html.] Figures 3

Figures 4 Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation

10 10 103 LINCOLN YOAKUM TERRY CHAVES 33

EDDY lf LEA She st GAINES we rth No

OTERO ANDREWS

m r

o f t Central Basin Platform a l

P NEW MEXICO 32 o l WINKLER

b TEXAS

i LOVING ECTOR D

CULBERSON WARD CRANE HUDSPETH

REEVES

31 UN IT PECOS ED M S JEFF DAVIS T EX A IC T O E S

BREWSTER PRESIDIO TERRELL

Base map from U.S. Department of the Interior, National Par Service 0 1 30 MIES UT CO KS MO UNITED STATES OK AR 0 1 30 KIOMETERS AZ NM

PANATIN Map LA area TX Delaware Basin Wolfcamp D Continuous Gas AU Delaware Basin Wolfcamp C Continuous MEXICO GULF OF Gas AU MEXICO Permian Basin Province boundary part Permian Basin Province boundary is shown in plum.

Figure 1. Map showing the Delaware Basin, Permian Basin Province, New Mexico and Texas, and the extent of the two Wolfcamp shale continuous gas assessment units (AUs). Province boundary is from Klett and others, 1997. (From Gaswirth and others, 2018) Figures 5

10 10 103

LINCOLN YOAKUM TERRY CHAVES 33

lf EDDY She LEA st we GAINES rth No

OTERO ANDREWS

m r

o f t Central Basin Platform

a l

P NEW MEXICO

o l WINKLER

b TEXAS

a LOVING

i ECTOR D

WARD CRANE HUDSPETH CULBERSON REEVES

31 UN IT PECOS ED M S JEFF DAVIS T EX A IC T O E S

BREWSTER PRESIDIO TERRELL

Base map from U.S. Department of the Interior, National Par Service 0 1 30 MIES UT CO KS MO UNITED STATES OK AR 0 1 30 KIOMETERS AZ NM

PANATIN Map LA area TX Delaware Basin Wolfcamp C Continuous il AU Delaware Basin Wolfcamp B ower Continuous MEXICO GULF OF il AU MEXICO Delaware Basin Wolfcamp B Upper Continuous il AU Delaware Basin Wolfcamp A Continuous il AU Permian Basin Province boundary is shown in plum. Permian Basin Province boundary part

Figure 2. Map showing the Delaware Basin, Permian Basin Province, New Mexico and Texas, and the extent of the four Wolfcamp shale continuous oil assessment units (AUs). Province boundary is from Klett and others, 1997. (From Gaswirth and others, 2018) 6 Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation

10 10 103

LINCOLN YOAKUM TERRY CHAVES

33 O

I S

EDDY lf LEA X E e A Sh t X

s M GAINES

thw E T

or W

N E N

OTERO ANDREWS

m r

o f t Central Basin Platform

a l

o l WINKLER

a LOVING

i ECTOR D

WARD

CRANE HUDSPETH

CULBERSON REEVES

31 UN IT PECOS ED M S JEFF DAVIS T EX A IC T O E S

BREWSTER PRESIDIO TERRELL

Base map from U.S. Department of the Interior, National Par Service 0 1 30 MIES UT CO KS MO UNITED STATES OK AR 0 1 30 KIOMETERS AZ NM

PANATIN Map LA area TX Third Bone Spring Continuous il AU Second Bone Spring Continuous MEXICO GULF OF il AU MEXICO First Bone Spring Continuous il AU Permian Basin Province boundary ower Avalon Shale Continuous is shown in plum. il AU Upper Avalon Shale Continuous il AU Permian Basin Province boundary part

Figure 3. Map showing the Delaware Basin, Permian Basin Province, New Mexico and Texas, and the extent of the five Bone Spring Formation continuous oil assessment units (AUs). The First, Second, and Third Bone Spring continuous oil AUs have the same extent. Province boundary is from Klett and others, 1997. (From Gaswirth and others, 2018) Figures 7

RI xp Ross Draw 7 36-24S-29E Eddy Co., NM 30015228100000 Spud 2-25-79 og Depth ft GR RES ,000 Delaware Mtn. Group Bone Spring Carbonate

,00 Leonard Shale Avalon Upper Shale Avalon Middle Carbonate 8,000 Avalon Lower Shale

Bone Spring 1st Sand 8,00 First Bone Spring Shale (FBS) Bone Spring 2nd Carbonate

,000 Bone Spring 2nd Sand

,00 Bone Spring 3rd Carbonate

10,000 10W 10W 103W

Bone Spring 3rd Sand N E W M E X I C O VES 10,00 GAINES

Wolfcamp (aka: Wolfcamp A) CH A

11,000 EDDY LEA Wolfcamp B ANDREWS

11,00 OTERO

Wolfcamp C 32N 12,000 Ross Draw 7 LOVING WINKLER 12,00

WARD 13,000 CULBERSON Wolfcamp D REEVES HUDSPETH 13,00 Strawn Delaware Basin boundary

31N

1,000 Permian Basin boundary part PECOS

JEFF DAVIS 1,00 US 0 10 20 30 0 MIES T E X A S MX 0 10 20 30 0 KIOMETERS PRESIDIO BREWSTER

Figure 4. Type log from southeast Eddy County, New Mexico, showing the stratigraphic column of the Wolfcamp shale and Bone Spring Formation of the Delaware Basin (from IHS Markit®, 2018). Formation and unit tops are based on the PRODFit™ database (IHS Markit®, 2018). 8 Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation

10W 10W 103W

N E W M E X I C O EDDY LEA

11,500

CHAVES 12,000 GAINES 9,000

9,500 11, 500

7,500

10,000 12,000 7000 11,500

8,000

12,500

8,500

13,000 ANDREWS OTERO

13,500

32N 11,000

LOVING 12,500

13,000 WINKLER

8,000 14,000 10,500

15,500

15,000 15,000 13,500 14,000 WARD 12,500 14,500 12,000 11,000 13,000 10,500 CULBERSON 10,000 10,50011,500

13,500 REEVES 14,000 HUDSPETH 12,000 13,000 12,500

14,500

15,500 16,000 16,500 31N 16,000

PECOS

UNITED JEFF DAVIS STATES

MEXICO T E X A S BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 0 10 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 5. Structure contour map of the top of the Wolfcamp D of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 719 data points (wells with Wolfcamp D tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 9

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 11,500 11,000 GAINES

8,500

13,000

6,000

12,500 12,000 6,500 10,500

11,500

ANDREWS OTERO

13,000 9,000

11,000

32N 13,500

WINKLER

7,000 LOVING

9,500

12,500

6,000 7,500 8,000 5,500 WARD

9,500 REEVES

10,000 HUDSPETH

8,500 9,500

12,000 9,500 10,000 8,000 CULBERSON 6,500 7,000 10,500 11,000

5,500 7,500 10,000 9,000

11,500 31N

10,500 PECOS

10,000 9,500 9,000 8,500 UNITED JEFF DAVIS STATES

Map Area MEXICO

Figure 6. Structure contour map of the top of the Wolfcamp C of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 840 data points (wells with Wolfcamp C tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. 10 Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

6,000 6,500

9,000

7,000

7,500

9,500 8,500

10,500 12,000 ANDREWS

OTERO 12,500 10,000

8,000

32N 11,500 LOVING

WINKLER

5,500

5,000 6,000

6,500 4,500 7,000 4,000 7,500

11,000 WARD 11,500

11,000

CULBERSON REEVES HUDSPETH

9,500

31N

9,500 PECOS 9,000 8,500

8,000 UNITED JEFF DAVIS STATES

Map Area MEXICO

Figure 7. Structure contour map of the top of the Wolfcamp B of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 846 data points (wells with Wolfcamp B tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 11

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

6,000 10,500 6,500

8,500 7,000

5,500

9,000

9,000 10,000

ANDREWS OTERO 11,000

11,500

10,000 12,500

8,000 32N 9,500

LOVING 12,000

WINKLER

5,500

6,000

5,000

3,500

4,000

4,500 7,500 10,500 WARD

CULBERSON 8,500 HUDSPETH REEVES

7,500 8,000

9,000

31N

9,000 PECOS 9,500 8,500

8,000 JEFF DAVIS UNITED 7,500 STATES 6,500 7,000 5,500 MEXICO TEXAS 6,000 BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 8. Structure contour map of the top of the Wolfcamp A of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 1,213 data points (wells with Wolfcamp A tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation 12

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 6,500 GAINES 5,500

5,000

8,500 4,500

9,000

8,000

9,500

10,000 ANDREWS

OTERO 10,500 11,000

10,000

7,000 9,500

11,500

9,000

5,500

12,000 32N

4,500

LOVING

8,000 WINKLER 8,500

3,500 6,000

5,000 4,000

3,500 WARD

7,500

9,000 REEVES

HUDSPETH 9,500 CULBERSON

9,000

7,500

31N 7,500

8,000 8,500

PECOS

8,500 8,000 7,0007,500 UNITED JEFF DAVIS STATES 6,500

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 9. Structure contour map of the top of the Third Bone Spring sand interval (Bone Spring 3rd sand) of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 7,917 data points (wells with Third Bone Spring sand interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 13

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

6,500

7,500

10,000 7,500 8,000

8,500

6,500

4,000 9,000

8,000

8,500 9,500

10,500

ANDREWS

OTERO 10,000

4,500 3,500

11,500

11,000

32N 5,000

9,500 7,000 LOVING

WINKLER

3,500

2,500

5,500 6,000 3,000 WARD

8,000 REEVES HUDSPETH

7,500 CULBERSON 7,000

9,000

31N 9,000 8,500 PECOS

8,000 7,500

7,000 UNITED JEFF DAVIS 6,000 6,500 STATES 5,500 MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 10. Structure contour map of the top of the Third Bone Spring carbonate interval (Bone Spring 3rd Carbonate) of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 1,231 data points (wells with Third Bone Spring carbonate interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation 14

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES

GAINES 8,500 3,500 4,000 3,000

4,500

8,500

8,000

9,500

7,500 3,000 2,500 ANDREWS OTERO

8,000

10,000 8,500

10,500

11,000 32N LOVING

WINKLER

3,500

4,500 5,000 4,000 5,500 3,000

2,500

9,500

WARD 6,000 6,500

3,000

7,000

9,000 REEVES

9,000 HUDSPETH 8,500

CULBERSON

31N

PECOS

7,500 7,000 UNITED JEFF DAVIS STATES

MEXICO 6,500 TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 11. Structure contour map of the top of the Second Bone Spring sand interval (Bone Spring 2nd Sand) of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 7,963 data points (wells with Second Bone Spring sand interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 15

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

5,000 4,000 2,500 3,000

8,500

9,500

7,000

3,500

5,500 7,500

6,500

8,000 9,000

ANDREWS OTERO 9,000

7,500

8,500

5,000

6,000 4,500 5,500 8,000

32N 10,500 5,500

6,500 7,000

4,500 LOVING 10,000 WINKLER

3,500

3,000

2,500

2,000

4,000

WARD 2,500

REEVES

HUDSPETH CULBERSON

7,000 6,500

8,500

31N

PECOS

8,000 7,500 7,000 UNITED JEFF DAVIS 6,000 6,500 STATES 5,000 5,500 MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 12. Structure contour map of the top of the Second Bone Spring carbonate interval (Bone Spring 2nd Carbonate) of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 1,232 data points (wells with Second Bone Spring carbonate interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. 16 Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES 3,500

9,000

8,000

7,500

9,500

2,500

7,500

ANDREWS

2,000 6,500 OTERO 3,000

10,000 8,000

10,500 32N

9,000 LOVING

WINKLER

4,500

5,000 2,500 3,000 3,500 4,000

6,000

2,500 5,500

WARD 8,500

8,500 REEVES HUDSPETH CULBERSON

8,000

31N

PECOS 7,500

7,000

6,500 UNITED JEFF DAVIS STATES

MEXICO 6,000 T E X A S BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 0 10 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 13. Structure contour map of the top of the First Bone Spring shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 906 data points (wells with First Bone Spring shale interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 17

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

6,500

5,500

9,500

000,7

005,9 ANDREWS OTERO

8,500

5,500 005,9

6,000 10,000 10,500

9,000 32N

9,000 7,500

LOVING WINKLER

3,500

4,000

3,000

4,500

5,000

2,500

WARD

REEVES HUDSPETH

CULBERSON

8,000

7,000

31N

PECOS

UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 14. Structure contour map of the top of the First Bone Spring sand interval (Bone Spring 1st sand) of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 8,021 data points (wells with First Bone Spring sand interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. 18 Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 6,500 GAINES 4,500 6,500 6,000

7,000

4,500

6,500

5,500

8,500

8,000

9,000

ANDREWS OTERO

7,500

7,000 9,500

5,500 9,000

10,000 32N 4,000 5,000 LOVING

4,000 WINKLER 10,000

4,500

3,000

2,500 3,500 WARD

7,000 CULBERSON REEVES HUDSPETH

31N

8,000 7,500 PECOS

UNITED JEFF DAVIS STATES

Map Area MEXICO

Figure 15. Structure contour map of the top of the Avalon lower shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 780 data points (wells with Avalon lower shale interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 19

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 5,000 5,500 GAINES

8,000

8,500

6,500

6,000 7,500

6,000

8,500 ANDREWS OTERO

7,000

6,500 8,000

9,000

0 7,500

7,000

8,000

9,500 32N

LOVING

7,500 WINKLER

3,000

2,500

1,500

3,500 4,000 4,500 5,000 2,000 1,500 WARD

7,000 REEVES

HUDSPETH 7,500

CULBERSON 6,500

31N

7,500 7,000 PECOS

UNITED JEFF DAVIS STATES

Map Area MEXICO

Figure 16. Structure contour map of the top of the Avalon upper shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 877 data points (wells with Avalon upper shale interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation 20

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 4,500 GAINES 6,000

4,000

7,000

9,000 5,500 8,000 2,000 3,000 3,500 2,500 ANDREWS OTERO

7,500

5,000

7,000

4,500

4,000

32N 9,000 4,500 6,500 LOVING

4,000 WINKLER

3,000

1,500

2,000 2,500 3,500

WARD

REEVES HUDSPETH 7,500

6,500 CULBERSON

31N 7,500

8,000 PECOS

6,500 7,000 6,000 UNITED JEFF DAVIS 5,500 STATES

Map Area MEXICO

Figure 17. Structure contour map of the top of the Leonard shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 500 feet, and 812 data points (wells with Leonard shale interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 21

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 600 GAINES

800 700

900 1,000

400 500 900 400 600 200 300 ANDREWS 200 OTERO

200 300 32N

300 LOVING WINKLER

1,200 200

1,100

500 1,400 700 700 1,300 300 900 800 1,000 400 600 600 800 300 WARD

CULBERSON 500 400 300 REEVES HUDSPETH

31N

PECOS

UNITED JEFF DAVIS STATES

Map Area MEXICO

Figure 18. Isopach map of the Wolfcamp D, which is the interval from the top of the Strawn Formation to the top of the Wolfcamp D of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 100 feet, and 686 data points (wells with Strawn Formation and Wolfcamp D tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. 22 Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 200 GAINES

300

300 400

ANDREWS OTERO

700 300 800 400

32N 600 500

LOVING

1,100 WINKLER 1,300 1,800 1,700 1,500 1,400 1,000 2,000 2,400 1,900 1,200 1,600 900 2,800 2,100

3,100

2,900 3,000 2,700 WARD 2,600 2,200

1,900 1500 1,200 2,700 1,600 900 1,000 1,300 HUDSPETH

2,500 CULBERSON 3,100 2,800 3,200 REEVES 1,100 3,300 1,800 3,600 3,000 2,100

1,400 3,400 1,700 3,700

2,000 3,900

2,300

2,600 2,900 3,800 31N 4,000 4,100

3,500 PECOS

UNITED JEFF DAVIS STATES

Map Area MEXICO

Figure 19. Isopach map of the Wolfcamp C, which is the interval from the top of the Wolfcamp D to the top of the Wolfcamp C of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 100 feet, and 625 data points (wells with Wolfcamp C and D tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 23

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

400

600

500 100

700 200 300 400 400 500 300 600 200 300 700 ANDREWS

OTERO 400

800

800 32N

LOVING 900 900 WINKLER

1,000 1,100 1,000 1,200

1,300

900 1,400 900 CULBERSON 800 1,100 700 600 WARD

500 400 1,200 700

1,300 1,400 500

800 1,200 1,100 700 HUDSPETH

400

600

REEVES 1,600 200 500

1,500 200 1,400 1,300 300

1,000 1,400 1,200 1,500 31N 1,100 1,800

800 1,400 1,700

1600 PECOS 700 900 1,300 600 500 400 700 1,000

UNITED JEFF DAVIS STATES

Map Area MEXICO

Figure 20. Isopach map of the Wolfcamp B, which is the interval from the top of the Wolfcamp C to the top of the Wolfcamp B of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 100 feet, and 680 data points (wells with Wolfcamp B and C tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation 24

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

500 300 400

300

ANDREWS

OTERO 400

500

32N 500

300 LOVING WINKLER

500

CULBERSON 500 WARD

400 REEVES

HUDSPETH 300

400

31N

PECOS

400

UNITED JEFF DAVIS STATES

Map Area MEXICO

Figure 21. Isopach map of the Wolfcamp A, which is the interval from the top of the Wolfcamp B to the top of the Wolfcamp A of the Wolfcamp shale, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 100 feet, and 846 data points (wells with Wolfcamp A and B tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 25

10W 10W 103W

N E W M E X I C O EDDY LEA 240 280 260 CHAVES 320 300 220 GAINES 300

420

260 380 180 400 160 340 440 200 240 240 280 480 240 260 400

400

180

420 200 300 340 380 360 ANDREWS

OTERO 220 360

460 360

240 440 460 400 280

320

32N 240 280 260 300 LOVING 340 WINKLER 340 280 380 320

260 320

220 400

240

320 420 WARD

340 380 360 360 340 340 CULBERSON 280 260 180 HUDSPETH 240 REEVES 290 240 220 200 240 180 280 220

200 180 320

180 340 31N 200

300 PECOS 300 320 280 JEFF DAVIS

UNITED 260 340

STATES 360 MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 22. Isopach map of the Third Bone Spring sand interval (Bone Spring 3rd Sand), which is the interval from the top of the Wolfcamp A to the top of the Third Bone Spring sand interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 20 feet, and 1,118 data points (wells with Wolfcamp A and Third Bone Spring sand interval tops) PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation 26

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 300 GAINES

400

700 500

600

1,200

1,500 1,400

ANDREWS 1,600 OTERO

1,300 1,100 1,000 800 900 800

32N 700

LOVING WINKLER

600 700

800 WARD CULBERSON

500

700 REEVES HUDSPETH

400

300

400

31N

PECOS

400

UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 23. Isopach map of the Third Bone Spring carbonate interval (Bone Spring 3rd Carbonate), which is the interval from the top of the Third Bone Spring sand interval to the top of the Third Bone Spring carbonate interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 100 feet, and 1,181 data points (wells with Third Bone Spring sand and Third Bone Spring carbonate tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 27

10W 10W 103W

N E W M E X I C O EDDY LEA 600 500 CHAVES 900 GAINES 1,000 1,700 700 800 1,600

1,600 1,300 1,800

1,100 ANDREWS 1,200 OTERO 1,900 1,700 1,500 1,400

1,200 32N

LOVING WINKLER

1,100

1,000

CULBERSON 900 1,000 WARD

800

700 REEVES

HUDSPETH 1,000 500 500

600

400 31N 700

PECOS

800

UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 24. Isopach map of the Third Bone Spring, which is the interval from the top of the Wolfcamp A to the top of the Third Bone Spring carbonate interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 100 feet, and 1,170 data points (wells with Wolfcamp A and Third Bone Spring carbonate interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation 28

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES 440 380 480 420 460 440 420 400 380 360 340 320 300 340 280 380 400

360

320 ANDREWS OTERO 360 280 380

480 300

400

460 180 520 440 500

32N

LOVING 340 WINKLER 200 380

180 240

220

260

200 180 140 WARD CULBERSON 260

160

240 220 HUDSPETH REEVES

180

180 31N

160 PECOS

200 JEFF DAVIS UNITED 220 STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 25. Isopach map of the Second Bone Spring sand interval, which is the interval from the top of the Third Bone Spring carbonate interval to the top of the Second Bone Spring sand interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 20 feet, and 1,204 data points (wells with Third Bone Spring carbonate interval and Second Bone Spring sand interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 29

10W 10W 103W

N E W M E X I C O EDDY LEA

410 CHAVES 440 280

460 430 GAINES 670 730 630 690 470 720 320 660 250 590 290 680 260 710 620 300 270 310 650 570 450 700 600 530

340 610 540 360 640 550 400 580 490 330 520 560 350 500 330 510 ANDREWS 500 310 510 320 OTERO 300 500 400 270 480 360 340 410 370

380 260 380 450 420 440 470

350

32N 250 370 420 240 390 400

390 280 WINKLER 360 380 340 LOVING 370 360 370 350 380 340

320

330 WARD 320 410

390

300 360 290 400 280 370 350 380 330 340

HUDSPETH CULBERSON REEVES

230

220 310

310 270

330 240 320 260 31N 230 210 250 240 PECOS

220

200 190 UNITED JEFF DAVIS 180 STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 26. Isopach map of the Second Bone Spring carbonate interval, which is the interval from the top of the Second Bone Spring sand interval to the top of the Second Bone Spring carbonate interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 10 feet, and 1,191 data points (wells with Second Bone Spring sand interval and Second Bone Spring carbonate interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation 30

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 840 1,200 GAINES 1,180 1,140 1,100 1,120 1,040 1,060 1,080 980 1,020 1,000 920 720 960 940 900 860 880 840 780 700 820 800 760 740 700 640 680 ANDREWS OTERO 740 600 660

570 720

760

580 590 32N 780

LOVING 740 WINKLER 700

620 WARD CULBERSON 600 580 540 560 520 500 480 HUDSPETH 460 REEVES

440 31N 420

400 PECOS

380

360 UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 27. Isopach map of the Second Bone Spring, which is the interval from the top of the Third Bone Spring carbonate interval to the top of the Second Bone Spring carbonate interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 20 feet, and 1,176 data points (wells with Third Bone Spring carbonate interval and Second Bone Spring carbonate interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 31

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

40 20

ANDREWS OTERO 80

90 110

70 30

32N 80 100 90 130 100 120 20

60 40 WINKLER LOVING

90 70 50 WARD 40 CULBERSON 30

REEVES 60 HUDSPETH

70 50 31N

40 PECOS

UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 28. Isopach map of the First Bone Spring shale interval, which is the interval from the top of the Second Bone Spring carbonate interval to the top of the First Bone Spring shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 10 feet, and 839 data points (wells with Second Bone Spring carbonate interval and First Bone Spring shale interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation 32

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

240 260

160

320

180 300

280 ANDREWS OTERO

200 220 200

220 240

180

32N 180 200 LOVING 260

280 160 300 WINKLER

340

320 280

220

340

260 300 280 360 380 WARD 300

240

320 220 260 CULBERSON 200

HUDSPETH 180 160 140 REEVES 140

160

180 31N

200 PECOS

UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 29. Isopach map of the First Bone Spring sand interval, which is the interval from the top of the First Bone Spring shale interval to the top of the First Bone Spring sand interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 20 feet, and 861 data points (wells with First Bone Spring shale interval and First Bone Spring sand interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 33

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 280 300 280 GAINES

200 180

220

240 280

240

360 ANDREWS OTERO 260

220

200 260

180 240

220

32N 160 140 400 260 340

360 200 LOVING WINKLER

400 340 260 380 280 380

400 320

420 340 360 WARD 360 320 320 340 300 300 280

240 260 CULBERSON HUDSPETH REEVES

180

200 31N 220 200 160

180 PECOS

140

180 UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 30. Isopach map of the First Bone Spring interval, which is the interval from the top of the Second Bone Spring carbonate interval to the top of the First Bone Spring sand interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 20 feet, and 1,131 data points (wells with Second Bone Spring carbonate interval and First Bone Spring sand interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation 34

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

ANDREWS OTERO

60 50

32N

LOVING WINKLER 60

WARD 20 CULBERSON

40 30 REEVES HUDSPETH

31N

PECOS

UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 31. Isopach map of the Avalon lower shale interval, which is the interval from the top of the First Bone Spring sand interval to the top of the Avalon lower shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 10 feet, and 669 data points (wells with First Bone Spring sand interval and Avalon lower shale interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 35

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES

40 60 GAINES

50 40

40 ANDREWS OTERO 50 70 130 180 160

170 190

200 32N 50

LOVING WINKLER

70 100 60

50 110

150

140 60 WARD

120 CULBERSON

90 HUDSPETH 80 REEVES

30 40

20 31N

PECOS

UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 32. Isopach map of the Avalon upper shale interval, which is the interval from the top of the Avalon middle carbonate interval to the top of the Avalon upper shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 10 feet, and 797 data points (wells with Avalon middle carbonate interval and Avalon upper shale interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation 36

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES GAINES

ANDREWS OTERO

60 50

32N

LOVING WINKLER 60

WARD 20 CULBERSON

40 30 REEVES HUDSPETH

31N

PECOS

UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 33. Isopach map of the Leonard shale interval, which is the interval from the top of the Avalon upper shale interval to the top of the Leonard shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 10 feet, and 957 data points (wells with Avalon upper shale interval and Leonard shale interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Figures 37

10W 10W 103W

N E W M E X I C O EDDY LEA

CHAVES 490 510 GAINES 400 400 430 450 460 470 500 420 480 410 430 440 410 440 390 390 370 240 420 260 250 380 220 270 300 230 240

270 230 250 200 ANDREWS OTERO 200 210 170 160

150 150

170 190

250

180

260 32N 240 220 LOVING 160 390 320 340 380 180 WINKLER

250 420 430 440 190

270

230

260

280

240

260 410 400

370 WARD 350 360 330

270 220 130 CULBERSON 290 310 REEVES

HUDSPETH 230

140

150 170

160 180

31N 190

240 210 230 PECOS

UNITED JEFF DAVIS STATES

MEXICO TEXAS BREWSTER PRESIDIO Base map from U.S. Department of the Interior, National Par Service NM OK 0 10 20 30 0 MIES Delaware Basin Province boundary UNITED PANATIN STATES Extent of data points for contouring 010 20 30 0 KIOMETERS Delaware Basin boundary Permian Basin Province boundary (part) County boundary TX State boundary

Map Area MEXICO

Figure 34. Isopach map of the Avalon upper shale interval and the Leonard shale interval, which is the interval from the top of the Avalon middle carbonate interval to the top of the Leonard shale interval of the Bone Spring Formation, Delaware Basin, Permian Basin Province, New Mexico and Texas. Contour interval is 10 feet, and 819 data points (wells with Avalon middle carbonate interval and Leonard shale interval tops) from PRODFit™ (IHS Markit®, 2018) were used to generate the contour map. Gaswirth—Structure Contour and Isopach Maps of the Wolfcamp Shale and Bone Spring Formation—Open-File Report 2020–1126 ISSN 2331-1258 (online) https://doi.org/10.3133/ofr20201126