INDEX - BY FORMATION NAME TO APPROVED TIGHT GAS FORMATION LISTING Formation Docket No. Date Page "14400 Sand Formation (Fifteen Mile Creek (Wilcox) Field 02-0253972 11/6/2007 486 "14900" Sand Series Formation (Fifteen Mile Creek (Wilcox) Field 02-0253971 11/6/2007 486 10,400,10,800,11,500 Sands (Mission West (Vicksburg 10400) Field 04-0261441 4/28/2009 566 10,600,10,750,11,400,11,800 Sands (Javelina (Vicksburg Cons) Field 04-0260915 2/26/2009 560 10200 Formation (Ann Mag (10200) Field 04-0247625 6/6/2006 437 11,300',11,600',12,600 Sands (Emma Haynes (11,400 Wilcox) Field 02-0264560 3/9/2010 620 11300 Sand (Mission, West (Vicksburg 10400) Field 04-0262252 7/21/2009 587 13900 Wilcox Formation (Dry Hollow (13900 Wilcox) Field 02-0235445 7/22/2003 318 1st Massive Formation(Samano (1st Massive) Field 04-0239153 7/6/2004 376 1st Rincon Formation(Samano (1st Rincon) Field 04-0240457 11/23/2004 317 1st & 2nd Bone Spring Formation (Sandbar (Bone Spring) Field 08-0326865 8/4/2020 766 2nd Bone Spring Formation (Sandbar (Bone Spring) Field 08-0296869 8/25/2015 702 2nd Bone Spring Formation (Sandbar (Bone Spring) Field) 08-0301902 1/24/2017 726 2nd Bone Spring Formation (Sandbar (Bone Spring) Field) 08-0302332 3/21/2017 728 2nd Bone Spring Formation (Sandbar (Bone Spring) Field) 08-0302333 3/21/2017 729 2nd Bone Spring Formation (Sandbar (Bone Spring) Field) 08-0303429 3/21/2017 733 2nd Bone Spring Formation (Sandbar (Bone Spring) Field) 08-0312558 6/18/2018 743 2nd Bone Spring Formation (Sandbar (Bone Spring) Field) 08-0316136 3/26/2019 744 3rd Bone Spring & Wolfcamp Formation (Phantom (Wolfcamp) Field) 08-0317323 10/1/2019 749 3rd Bone Spring & Wolfcamp Formation (Phantom (Wolfcamp) Field) 08-0327608 11/4/2020 771 3rd Bone Spring & Wolfcamp Formation (Phantom (Wolfcamp), Ford, West (Wolfcamp) Fields) 08-0305151 8/15/2017 727 3rd Bone Spring & Wolfcamp Formation (Phantom (Wolfcamp), Ford, West (Wolfcamp), Sandbar (Bone Spring), Wolfbone (Trend Area), Red Bluff (Wolfcamp) Fields) 08-0303284 2/28/2017 728 3rd Bone Spring Formation (Sandbar (Bone Spring) Field) 08-0303428 3/21/2017 733 3rd Bone Spring Formation (Sandbar (Bone Spring) Field) 08-0306128 11/7/2017 739 8000 Vicksburg Upper Formation (Cage Ranch(8000 Vicksburg Upper) Field 04-0266181 10/12/2010 646 8300 Vicksburg Formation (Cage Ranch (8300 Vicksburg) Field 04-0266120 10/12/2010 647 8400 Vicksburg Formation (Cage Ranch (8400 Vicksburg) Field 04-0266119 10/12/2010 646 9100 and 9200 Sands (Flowella (Frio Vx Shallow) Field 04-0261806 6/18/2009 574 9200 Sand (Mission, West (Vicksburg 10400) Field 04-0262250 7/21/2009 586 9300 Vicksburg Formation(Agua Dulce(Vicksburg Consol)Fld NPT 7-6-04 04-0236646 11/13/2003 334 9500 Sand (Mission, West (Vicksburg 10400) Field 04-0262251 7/21/2009 587 9900 Wilcox Formation(Oakville(Wilcox Cons.) Field 02-0234955 6/10/2003 313 A.W.P. (Olmos Field) 01-85,978 10/28/1985 2 A.W.P. (Olmos Field) 01-86,560 8/18/1986 3 A.W.P. (Olmos Field) 01-91,662 5/12/1988 1 Anacacho Formation 01-78,434 9/27/1982 3 Appleby, N. (Travis Peak) Field 06-92,079 10/3/1988 3 Atoka Congl. Formation(Gilley, W. (Atoka Congl.) Field 09-0232651 11/21/2002 290 Atoka Conglomerate (Boyles (Atoka Congl.) Field 8A-0256800 5/29/2008 530 Atoka Formation 09-0204648 3/28/1994 4 Atoka Formation 7B-0203019 10/25/1993 7 Atoka Formation (Blueberry Hill (4900) Field) 09-0212821 7/30/1996 4 Atoka Formation (Boonsville (Bend Congl., Gas) Field) 09-0205956 8/29/1994 7 Atoka Formation (Boonsville (Bend Congl., Gas) Field) 09-0207039 2/28/1995 6 Atoka Formation (Boonsville (Bend Congl., Gas) Field) 09-0210561 12/12/1995 8 Atoka Formation (Boonsville (Bend Congl., Gas) Field) 09-0210562 12/12/1995 5 Atoka Formation (Boonsville (Bend Congl., Gas) Field) 09-0210563 12/12/1995 5 Atoka Formation (Boonsville (Bend Congl., Gas) Field) 09-0211176 2/13/1996 8 Atoka Formation (Boonsville (Bend Congl., Gas) Field) 09-0211190 2/13/1996 8 Atoka Formation (Boonsville (Bend Congl., Gas) Field) 09-0211946 5/21/1996 4 Page 1 11/5/2020 INDEX - BY FORMATION NAME TO APPROVED TIGHT GAS FORMATION LISTING Atoka Formation (Boonsville (Bend Congl., Gas) Field) 09-0213188 8/20/1996 144 Atoka Formation (Boonsville (Bend Congl., Gas) Field) 09-0221591 5/25/1999 204 Atoka Formation (Boonsville Bend Conglomerate Gas Field) 09-0209625 9/12/1995 5 Atoka Formation (Boonsville(Bend Conglomerate) Field 09-0274429 10/2/2012 681 Atoka Formation (Bradford, SE (Atoka) Field 10-0263953 1/12/2010 612 Atoka Formation (Cambridge (Atoka) Field 10-0263776 12/15/2009 611 Atoka Formation (Cambridge (Atoka) Field 10-0264229 1/26/2010 615 Atoka Formation (Coburn (Atoka) Field 10-0263775 12/15/2009 610 Atoka Formation (Gas Finders (Congl.) Field) 09-0212555 7/9/1996 6 Atoka Formation (Gas Finders (Congl.) Field) 09-0217238 9/30/1997 171 Atoka Formation (Lipscomb (Atoka) and Lipscomb (Atoka 9200) Fields 10-0264224 1/26/2010 613 Atoka Formation (Lipscomb(Atoka 9200)Lipscomb(Atoka) Fields 10-0253682 11/6/2007 489 Atoka Formation (Lipscomb(Atoka 9200)Lipscomb(Atoka) Fields 10-0256639 5/29/2008 528 Atoka Formation (Males (4300) Field) 7B-0217237 9/30/1997 172 Atoka Formation (Mineral Wells (Big Saline) & N. (Big Saline) 7B-0210616 12/19/1995 6 Atoka Formation (MiVida (Permo-Penn) Field 08-0236542 10/21/2003 330 Atoka Formation (Rusmag (GC Sand) and Morris Consolidated Field) 09-0215290 6/3/1997 165 Atoka Formation (Toto (Caddo Congl.) Field 7B-0210715 1/9/1996 7 Atoka Formation (Trosper (Atoka) Field 10-0264223 1/26/2010 614 Atoka Formation(Boonsville (Bend Congl. Gas) Field 09-0225288 9/25/2000 220 Atoka Formation(Boonsville (Bend Congl. Gas) Field 09-0232652 12/3/2002 291 Atoka Formation(Boonsville (Bend Congl. Gas) Field 09-0233475 1/21/2003 298 Atoka Formation(Boonsville (Bend Congl. Gas) Field 09-0235193 6/24/2003 315 Atoka Formation(Cap Yates(Consl. Congl.) Field 09-0233109 6/24/2003 316 Atoka Formation(Cap Yates(Consl. Congl.) Field 09-0234209 5/6/2003 306 Atoka Formation(Gilley, W. (Atoka Congl.) Field 09-0233474 1/21/2003 299 Atoka Formation(Jupiter(Conglomerate, 3rd)Jupiter(Conglomerate Lower 09-0232653 12/3/2002 292 Atoka Granite Wash Formation (Mills Ranch (Atoka Granite Wash) Field 10-0261952 6/30/2009 581 Atokan (13900) Wash Sand Interval(Mills Ranch Field-"Area-I" Field 10-0237323 2/24/2004 363 Atokan (13900) Wash Sand Interval(Mills Ranch Field-"Area-II" Field 10-0237324 2/24/2004 363 Austin Chalk (Carmona (Austin Chalk) 03-97,159 2/24/1992 13 Austin Chalk Formation 03-0200903 8/30/1993 10 Austin Chalk Formation 03-0201013 4/26/1993 11 Austin Chalk Formation 03-0205698 8/22/1994 10 Austin Chalk Formation 03-0206110 9/12/1994 12 Austin Chalk Formation 03-79,664 7/18/1983 8 Austin Chalk Formation 03-97,995 8/17/1992 9 Austin Chalk Formation 03-98,270 9/28/1992 11 Austin Chalk Formation 03-98,294 10/5/1992 12 Austin Chalk Formation 06-98,294 10/5/1992 12 Austin Chalk Formation (Sugarkane (Austin Chalk) Field) 02-0301829 1/24/2017 725 Austin Chalk Formation (Brookeland (Austin Chalk 8800) Field) 03-0205873 12/5/1994 10 Austin Chalk Formation (Brookeland (Austin Chalk 8800) Field) 03-0210945 1/30/1996 9 Austin Chalk Formation (Brookeland (Austin Chalk 8800) Field) 03-0211364 2/27/1996 13 Austin Chalk Formation (Brookeland (Austin Chalk 8800) Field) 03-0216703 8/12/1997 167 Austin Chalk Formation (Brookeland (Austin Chalk 8800) Field) 03-0218613 3/17/1998 184 Austin Chalk Formation (Brookeland (Austin Chalk 8800) Field) 06-0205873 12/5/1994 10 Austin Chalk Formation (Brookeland (Austin Chalk 8800) Field) 06-0221632 5/25/1999 203 Austin Chalk Formation (Brookeland (Austin Chalk 8800) Field) 06-0256123 4/8/2008 526 Austin Chalk Formation (Brookeland (Austin Chalk 8800)Magnolia Springs (Austin Chalk)03-0260533 Fields 2/10/2009 557 Austin Chalk Formation (Brookeland (Austin Chalk, 8800) Field 03-0263919 2/23/2010 619 Austin Chalk Formation (Brookeland (Austin Chalk, 8800) Field 06-0263201 11/24/2009 605 Austin Chalk Formation (Deep Pines (WDBN/AC) Field) 03-0301935 9/19/2017 730 Austin Chalk Formation (Double A Well, N (Austin Chalk) Field 03-0258149 8/12/2008 542 Page 2 11/5/2020 INDEX - BY FORMATION NAME TO APPROVED TIGHT GAS FORMATION LISTING Austin Chalk Formation (Double A Well, N (Austin Chalk) Field 03-0261631 5/19/2009 570 Austin Chalk Formation (Giddings (Austin Chalk) Field) 03-0212834 7/30/1996 12 Austin Chalk Formation (Giddings (Austin Chalk, Gas) Field) 03-0211142 2/13/1996 13 Austin Chalk Formation (Giddings (Austin Chalk, Gas) Field) 03-0211366 2/27/1996 13 Austin Chalk Formation (Giddings (Austin Chalk, Gas) Field) 03-0217746 12/16/1997 177 Austin Chalk Formation (Giddings (Austin Chalk, Gas) Field) 03-0221448 4/27/1999 201 Austin Chalk Formation (Giddings (Austin Chalk, Gas) Field) 03-0260921 3/11/2009 561 Austin Chalk Formation (Giddings (Austin Chalk, Gas) Field) 03-0327094 10/20/2020 769 Austin Chalk Formation (Hawkville (Austin Chalk) Field 04-0273309 2/7/2012 672 Austin Chalk Formation (per (ra)final order-current 7 austin chalk fields in Polk County)03-0267859 12/14/2010 659 Austin Chalk Formation(Brookeland(Austin Chalk, 8800) Field 03-0252293 6/26/2007 468 Austin Chalk Formation(Brookeland(Austin Chalk, 8800) Field 06-0242906 6/21/2005 405 Austin Chalk Formation(Brookeland(Austin Chalk, 8800) Field 06-0243516 7/22/2005 410 Austin Chalk Formation(Brookeland(Austin Chalk,8800)(Double A Wells, N(Austin Chalk)03-0256886 Field 5/29/2008 532 Austin Chalk Formation(Huntsville, Northeast Field 03-0232262 9/12/2002 282 Austin Chalk Formation (Lorenzo) Field 01-0321554 5/5/2020 762 Austin Chalk Formation (Lorenzo) Field 01-0326101 5/5/2020 763 Austin Chalk Formation(Lomita(Austin Chalk) Field 03-0224490 4/25/2000 216 Avalon Shale and First Bone Spring Formations(Sandbar(Bone Spring) Field 08-0297480 12/15/2015 704 Avalon Shale Formation (Sandbar (Bone Spring) Field 08-0296868 8/25/2015 702 Avalon Shale Formation (Sandbar (Bone Spring) Field 08-0318041 8/6/2019 747 Avalon Shale Formation(Sandbar(Bone Spring) Field 08-0298937 2/23/2016 706 Bank Sand Formation (Midway S.