Case: 21-10840 Doc: 95 Filed: 04/28/21 Page: 1 of 65 Case: 21-10840 Doc: 95 Filed: 04/28/21 Page: 2 of 65 EXHIBIT A Case: 21-10840 Doc: 95 Filed: 04/28/21 Page: 3 of 65 EXHIBIT A Master Service List Served as stated below Description Creditor Address1 Address2 Address3 Address4 Email Method of Service Trade Payable Amplify Energy Operating LLC 500 Dallas St, Ste 1700 Houston, TX 77002 First Class Mail Trade Payable Arkoma Operations LLC 425 W Capital, Ste 3550 Little Rock, AR 72201 First Class Mail Trade Payable Blue Water Resources, LLC 2508 E 71St St, Ste B Tulsa, OK 74136 First Class Mail Trade Payable Casillas Petroleum Resource Partners, LLC 401 S Boston Ave, Ste 2400 Tulsa, OK 74103 First Class Mail Trade Payable Chesapeake Operating, Inc 6100 N Western Ave Oklahoma City, OK 73118 First Class Mail *NOA - Proposed Debtor's Counsel Christensen Law Group, PLLC Brock Z. Pittman [email protected] Email *NOA - Proposed Debtor's Counsel Christensen Law Group, PLLC J. Clay Christensen [email protected] Email *NOA - Proposed Debtor's Counsel Christensen Law Group, PLLC Emily J. Irwin [email protected] Email *NOA - Proposed Debtor's Counsel Christensen Law Group, PLLC Jeffrey E. Tate [email protected] Email *NOA - Proposed Debtor's Counsel Christensen Law Group, PLLC Jonathan M. Miles [email protected] Email Trade Payable Cimarex Energy Co 1700 Lincoln St, Ste 3700 Denver, CO 80203 First Class Mail Trade Payable Citizen Energy Iii LLC 320 S Boston Ave, Ste 900 Tulsa, OK 74103 First Class Mail Trade Payable Conocophillips Company 925 N Eldridge Pkwy Houston, TX 77079 First Class Mail Trade Payable Contango Resources, Inc 717 Texas Avebue, Ste 2900 Houston, TX 77002 First Class Mail Trade Payable Continental Resources, Inc 20 N Broadway Oklahoma City, OK 73102 First Class Mail *NOA - Counsel for Simmons Bank Crowe & Dunlevy Margaret M. Sine [email protected] Email *NOA - Counsel for Simmons Bank Crowe & Dunlevy William H. Hoch, III [email protected] Email Trade Payable Devon Energy Production Company, LP 333 West Sheridan Ave Oklahoma City, OK 73102 First Class Mail Trade Payable Enable Midstream Partners 499 W Sheridan Ave, Ste 1500 Oklahoma City, OK 73102 First Class Mail Trade Payable Foundation Energy Management, LLC Attn: Eddie W. Rhea 5057 Keller Springs Rd, Ste 650 Addison, TX 75001 First Class Mail Trade Payable Hilcorp Energy Company 1111 Travis St Houston, TX 77002 First Class Mail Trade Payable Indigo Minerals LLC 600 Travis St, Ste 5500 Houston, TX 77002 First Class Mail Taxing Authorities Internal Revenue Services Centralized Insolvency Operation P.O. Box 7346 Philadelphia, PA 19101-7346 First Class Mail Trade Payable Jma Energy Company, LLC Attn: Michael J. Massad 1021 Northwest Grand Blvd Oklahoma City, OK 73118 First Class Mail Email Taxing Authorities Louisiana Dept of Revenue Attn: Collection Div, Bankruptcy Section P.O. Box 66658 Baton Rouge, LA 70896-6658 [email protected] First Class Mail Email Taxing Authorities Louisiana Dept of Revenue Attn: Collection Div, Bankruptcy Section P.O. Box 201 Baton Rouge, LA 70821-0201 [email protected] First Class Mail Trade Payable Mach Ii, LLC Attn: Michael Reel 14201 Wireless Way Oklahoma City, OK 73134 First Class Mail Trade Payable Mach Resources, LLC Attn: Greg Dewey 14201 Wireless Way Oklahoma City, OK 73134 First Class Mail Trade Payable Magnolia Midstream Gas Services 1 Williams Center P.O. Box 2400, M.D 47 Legal Tulsa, OK 74172 First Class Mail *NOA - Counsel for the United States Trustee Office of the United States Trustee Marjorie J. Creasey [email protected] Email Taxing Authorities Oklahoma Tax Commission Attn: General Counsel's Office 100 N Broadway Ave, Ste 1500 Oklahoma City, OK 73102-8601 First Class Mail Taxing Authorities Oklahoma Tax Commission Attn: General Counsel's Office 2501 N Lincoln Blvd Oklahoma City, OK 73194 First Class Mail Trade Payable Presidio Petroleum LLC 500 W 7th St, Ste 803 Fort Worth, TX 76102 First Class Mail Trade Payable Riviera Operating, LLC 717 Texas Ave, Ste 2000 Houston, TX 77002 First Class Mail Trade Payable Sandridge Exploration & Production LLC 1 East Sheridan, Ste 500 Oklahoma City, OK 73104 First Class Mail Trade Payable Scout Energy Management 4901 Lbj Freeway, Ste 300 Dallas, TX 75244 First Class Mail Litigation Teocalli Exploration LLC 6608 N Western Ave Oklahoma City, OK 73116 First Class Mail Trade Payable Teocalli Exploration, LLC 6608 N Western Ave Oklahoma City, OK 73116 First Class Mail Trade Payable Territory Resources LLC Attn: Legal Dept 1511 S Sangre Rd Stillwater, OK 74074 First Class Mail Email Taxing Authorities Texas Comptroller of Public Accounts P.O. Box 13528 Capitol Station Austin, TX 78711-3528 [email protected] First Class Mail Trade Payable Trinity Operating (Usg), LLC 601 Travis St, Ste 1900 Houston, TX 77002 First Class Mail US Attorney's Office for Western District of Oklahoma U.S. Attorney's Office Western District of Oklahoma 210 W Park Ave, Ste 400 Oklahoma City, OK 73102 First Class Mail Trade Payable Unbridled Resources LLC 1111 Bagby St, Ste 1600 Houston, TX 77002 First Class Mail Taxing Authorities Virginia Dept of Taxation Attn: Business/Compliance P.O. Box 1500 Richmond, VA 23218-1500 First Class Mail Trade Payable Weatherly Oil & Gas, LLC 4849 Greenville Ave, Ste 1250 Dallas, TX 75206 First Class Mail Trade Payable Williams Midstream Gas Services LLC 1 Williams Center P.O. Box 2400, M.D 47 Legal Tulsa, OK 74172 First Class Mail Email Counsel to Simmons Bank, Secured Lender Winstead PC Attn: Clint Bodien 500 Winstead Bldg 2728 N Harwood St Dallas, TX 75201 [email protected] First Class Mail Trade Payable Xto Energy, Inc 22777 Springwoods Village Pkwy Spring, TX 77389 First Class Mail Dorchester Resources, L.P. (21-10840 Case: 21-10840 Doc: 95 Filed: 04/28/21 Page: 4 of 65 EXHIBIT B Case: 21-10840 Doc: 95 Filed: 04/28/21 Page: 5 of 65 EXHIBIT B Service List Served as stated below Description Creditor Address1 Address2 Address3 Address4 Address5 Email Method of Service Trade Payable 2 Fellas & A Big Vehicle Moving Co P.O. Box 620 Oklahoma City, OK 73101 First Class Mail Royalty Owners 2 J Oil & Gas LLC 201 W Adams St Brownwood, TX 76801 First Class Mail Royalty Owners 2010 Brittany Mclean Irrev Tr Fw Account XXXXX Frances Carvey Trst P.O. Box 449 Galveston, TX 77553 First Class Mail Royalty Owners 2010 Navassa Hilbertz Irrev Tr Fw Account XXXXX Frances Carvey Trst P.O. Box 449 Galveston, TX 77553 First Class Mail Royalty Owners 2010 Zachary Mclean Irrev Tr Fw Account XXXXX Frances Carvey Trst P.O. Box 449 Galveston, TX 77553 First Class Mail Royalty Owners 2013 Robert & Susan W Allen Rev Fam Tr Robert W & Susan W Allen Trsts 576 Silex Rd Dover, AR 72837 First Class Mail Royalty Owners 2264 Co Ltd P.O. Box 5567 Norman, OK 73070‐5567 First Class Mail Royalty Owners 3D Oil & Gas Corp c/o C Wes Dobbins 5 S Commerce Box 25 Ardmore, OK 73401‐3932 First Class Mail Royalty Owners 3Mg Corp Attn: Cheryl Davis P.O. Box 7698 Tyler, TX 75711 First Class Mail Royalty Owners 3Ms Family LP 4334 NW Expressway, Ste 185 Oklahoma City, OK 73116 First Class Mail Trade Payable 3Nines Technologies, Inc 3031 Nw 149Th Oklahoma City, OK 73134 First Class Mail Royalty Owners 4000 Pacific Development Address Redacted First Class Mail Royalty Owners 4B Properties LLC Attn: Sarah Jane Rodgers Mgr 300 Country Club Dr Holdenville, OK 74848 First Class Mail Trade Payable 4G Operating LLC 30662 South Hwy 2 Kinta, OK 74552 First Class Mail Royalty Owners 57 Madison Assn LP 6 E 43rdSt New York, NY 10017 First Class Mail Royalty Owners 5H Oil Co LLC P.O. Box 25204 Dallas, TX 75225 First Class Mail Trade Payable 80Degrees Energy, LLC 2601 Lancaster Ln Oklahoma City, OK 73116 First Class Mail Royalty Owners 820 Management Tr 201 Main St, Ste 2300 Fort Worth, TX 76102‐3131 First Class Mail Trade Payable 89 Energy, LLC c/o Camino Natural Resources Attn: Tara Long 1401 17th St, Ste 1000 Denver, CO 80202 First Class Mail Royalty Owners A & B Heritage LLC 5262 Danton Pl Keithville, LA 71047 First Class Mail Royalty Owners A & K Oil & Gas Investors LLC 4100 Perimeter Ctr Dr, Ste 150 Oklahoma City, OK 73112 First Class Mail Royalty Owners A & s Operating Inc P.O. Box 702468 Tulsa, OK 74170 First Class Mail Royalty Owners A A Sugg Jr Rev Tr Robin Sugg, Succ Ttee P.O. Box 5890 San Angelo, TX 76902 First Class Mail Royalty Owners A Byron Pugh Iii P.O. Box 820387 Houston, TX 77282‐0387 First Class Mail Royalty Owners A C & Frankie L Hilton P.O. Box 324 Keithville, LA 71047 First Class Mail Royalty Owners A Cross Ranch Ltd c/o Laure Allee Switzer 1824 Devonshire Oklahoma City, OK 73116 First Class Mail Royalty Owners A D Weatherly Family Tr Robert Carr Vincent Trst 1500 S Lamar Amarillo, TX 79102 First Class Mail Royalty Owners A E Martin c/o Onstott & Assoc Inc 6 NE 63rd St, Ste 240 Oklahoma City, OK 73105‐1401 First Class Mail Royalty Owners A Frank Kubica Tr Dtd 12‐24‐69 512 Highland Dr Kerrville, TX 78028 First Class Mail Royalty Owners A H Karchmer c/o Interntl Pipe & Supply 3300 NE 60th St Oklahoma City, OK 73121 First Class Mail Royalty Owners A H Rowan Iii Irrevocable Tr c/o Jpmorgan Chase Bank Trst P.O. Box 99084 Fort Worth, TX 76199‐0084 First Class Mail Royalty Owners A J Harris Address Redacted First Class Mail Royalty Owners A J Mcknight Jr Address Redacted First Class Mail Royalty Owners A L Cone Ptrshp P.O.