Oil and gas leases in Haskell County
Haskell County, Texas has 511 oil and gas leases with production on file at the Railroad Commission. 500 of them are oil leases and 11 are gas leases. Between them they carry 1,161 wellbores. Reported volumes run from January 1993 to August 2026 and come to 17.5 million barrels of oil and 338 thousand Mcf of gas. 177 operators file returns here. Every lease below has its own page with a decline-curve forecast and an estimate of what the whole lease is worth.
Key facts about Haskell County
- How many oil and gas leases are in Haskell County?
- Haskell County has 511 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
- How much oil and gas has Haskell County produced?
- Leases in Haskell County have reported 17,530,619 barrels of oil (bbl) and 337,958 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
- Who are the biggest operators in Haskell County?
- Kendrick Oil Co. operates 25 of the 511 producing leases in Haskell County, more than any other operator on record with the Railroad Commission of Texas.
- How many operators are active in Haskell County?
- 177 operators file production returns for leases in Haskell County.
- How much are mineral rights in Haskell County worth?
- There is no single figure: what a mineral or royalty interest in Haskell County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 511 leases listed here has its own page with the full production history the operator reported, a decline-curve forecast, and an estimate of what a royalty interest in it is worth today.
Operators here
The company that runs the wells and issues the royalty cheque.
- Kendrick Oil Co. — 25 leases
- S.B. Street Operating, Inc. — 25 leases
- Adkins, R. L. Corp. — 20 leases
- Bridwell Oil Co. — 18 leases
- Centaur Petroleum Corporation — 17 leases
- Wilcox Petroleum Operating LLC. — 17 leases
- Sojourner Drilling Corporation — 16 leases
- Cross Timbers Operating Company — 14 leases
- Glahn Resources, Inc. — 10 leases
- Patton, E. N. Oil Company, Inc. — 9 leases
- Bristol Resources Corporation — 7 leases
- Burk Royalty Company — 7 leases
- NBX Energy, LLC — 7 leases
- Rister, Dewey — 7 leases
- Joint Resources Company — 6 leases
- L.C.S. Production Company — 6 leases
- Langford, R. C. Operating Co. — 6 leases
- Rla Resources, Inc — 6 leases
- Kendrick Oil And Gas Company — 5 leases
- Mexco Energy Corporation — 5 leases
- Neatherlin, Earl Inc. — 5 leases
- Petex — 5 leases
- Stovall Operating Co. — 5 leases
- Titan Energy, Inc. — 5 leases
- Walsh & Watts, Inc. — 5 leases
- American Cascade Energy, Inc. — 4 leases
- D. A. B. Oil Service, Inc. — 4 leases
- Farmer, Lewis & Hayden — 4 leases
- Fisher, Jack Inc. — 4 leases
- Herring, Ray — 4 leases
- Landmaster Partners, Inc. — 4 leases
- Star Production, Inc. — 4 leases
- WBR, Inc. — 4 leases
- Wiser Oil Company, The — 4 leases
- Bluff Creek Petroleum, LLC — 3 leases
- Breck Operating Corp. — 3 leases
- Bright & Co. — 3 leases
- Burger, F.W. Inc. — 3 leases
- Crown Equipment Co. — 3 leases
- Farmer, Hayden — 3 leases
- Ferrari Energy Services LLC — 3 leases
- Foree Oil Company — 3 leases
- Frontier Operating Corporation — 3 leases
- Harken Exploration Company — 3 leases
- Hess, Jerry Operating Co. — 3 leases
- Howle Operating Account, Inc. — 3 leases
- Jacobs, C. E., Co. — 3 leases
- MJM Oil & Gas, Inc. — 3 leases
- Mathis & Sons, Inc. — 3 leases
- Spindletop Oil & Gas Company — 3 leases
- Stowe Energy, Inc. — 3 leases
- Sullivan, Hollis R. Inc. — 3 leases
- TKP Petroleum, Inc. — 3 leases
- Williams Oil Company — 3 leases
- Allegro Investments, Inc. — 2 leases
- Baxter, Kelly H. — 2 leases
- Cholla Petroleum, Inc. — 2 leases
- Continual Oil & Gas, Inc. — 2 leases
- Costilla Petroleum Corporation — 2 leases
- Delong, Lawrence H & Assoc Inc. — 2 leases
Railroad Commission districts
- District 7B — 509 leases
- District 09 — 2 leases
Leases — page 1 of 3
- FLAT TOP RANCH PC — oil, NBX Energy, LLC, Haskell County, 1.3 million reported
- BOGARD WATERFLOOD UNIT — oil, Burk Royalty Company, Haskell County, 943 thousand reported
- CLOUD (STRAWN SAND) UNIT — oil, Cross Timbers Operating Company, Haskell County, 635 thousand reported
- RISLEY — oil, NBX Energy, LLC, Haskell County, 438 thousand reported
- RULE WEST UNIT — oil, Bridwell Oil Co., Haskell County, 356 thousand reported
- CAMPBELL "B" A/C-1 — oil, Walsh & Watts, Inc., Haskell County, 355 thousand reported
- HASKELL-SOJOURNER UNIT — oil, Braden-Deem, Inc., Haskell County, 346 thousand reported
- NORTH HERRIN UNIT — oil, Cross Timbers Operating Company, Haskell County, 344 thousand reported
- FLAT TOP RANCH PCN — oil, NBX Energy, LLC, Haskell County, 256 thousand reported
- MIDDLEBROOK — oil, Wilcox Petroleum Operating LLC., Haskell County, 252 thousand reported
- WEREWOLF SW (BURSON SAND) UNIT — oil, Star Production, Inc., Haskell County, 232 thousand reported
- BEVEL — oil, Sojourner Drilling Corporation, Haskell County, 218 thousand reported
- SHORT, IRA — oil, Williams Oil Company, Haskell County, 200 thousand reported
- DBM — oil, Boyd & Mcwilliams Energy Group, Haskell County, 173 thousand reported
- MICHAELS, E. L. — oil, Cross Timbers Operating Company, Haskell County, 173 thousand reported
- TEAGUE — oil, Wilcox Petroleum Operating LLC., Haskell County, 172 thousand reported
- HEG MASSEY — oil, Wilcox Petroleum Operating LLC., Haskell County, 168 thousand reported
- RISLEY 'A' — oil, NBX Energy, LLC, Haskell County, 164 thousand reported
- CLARK, JOE FRANCES — oil, Patton, E. N. Oil Company, Inc., Haskell County, 160 thousand reported
- STRAND -A- — oil, MJM Oil & Gas, Inc., Haskell County, 154 thousand reported
- MCBEATH, KATHLEEN JONES — oil, Bridwell Oil Co., Haskell County, 148 thousand reported
- BP-BURSON — oil, S.B. Street Operating, Inc., Haskell County, 142 thousand reported
- BECKER, A.H. — oil, Sojourner Drilling Corporation, Haskell County, 140 thousand reported
- FARMER — oil, Wilcox Petroleum Operating LLC., Haskell County, 128 thousand reported
- DEVON-RINN — oil, S.B. Street Operating, Inc., Haskell County, 122 thousand reported
- HENDRICK, T.G. EST. "14" — oil, Kendrick Oil Co., Haskell County, 118 thousand reported
- PLEASANTS — oil, Centaur Petroleum Corporation, Haskell County, 117 thousand reported
- ADAMS FARMER — oil, Wilcox Petroleum Operating LLC., Haskell County, 116 thousand reported
- JONES, LEGGETT — oil, Langford, R. C. Operating Co., Haskell County, 116 thousand reported
- OBRIEN STRAWN UNIT — oil, Santa Fe Exploration Company, Haskell County, 114 thousand reported
- BP-ROBERSON — oil, S.B. Street Operating, Inc., Haskell County, 113 thousand reported
- BOGARD — oil, Burk Royalty Company, Haskell County, 107 thousand reported
- HOLME'S — oil, Stovall Operating Co., Haskell County, 106 thousand reported
- MATHIS — oil, Adkins, R. L. Corp., Haskell County, 105 thousand reported
- CHAMBERS — oil, Sojourner Drilling Corporation, Haskell County, 104 thousand reported
- COLLET — oil, Wilcox Petroleum Operating LLC., Haskell County, 102 thousand reported
- J B K — oil, Centaur Petroleum Corporation, Haskell County, 100 thousand reported
- BUCKNER — oil, S.B. Street Operating, Inc., Haskell County, 100 thousand reported
- CLOUD — oil, Bridwell Oil Co., Haskell County, 97 thousand reported
- BUSH ESTATE — oil, Moore Investment Co., Haskell County, 96 thousand reported
- HAMILTON, EVIE -C- — oil, Arnot, W. G., JR., Haskell County, 96 thousand reported
- LOVVORN-CAROTHERS UNIT — oil, Petex, Haskell County, 92 thousand reported
- CRICKET (STRAWN) UNIT — oil, Patton, E. N. Oil Company, Inc., Haskell County, 92 thousand reported
- GRICE EAST — oil, L.C.S. Production Company, Haskell County, 88 thousand reported
- GANNAWAY — oil, S.B. Street Operating, Inc., Haskell County, 85 thousand reported
- REAMES — gas, Adkins, R. L. Corp., Haskell County, 82 thousand reported
- HAYNES — oil, Allegro Investments, Inc., Haskell County, 80 thousand reported
- ATKINS, C. A. — oil, Star Production, Inc., Haskell County, 80 thousand reported
- SAGERTON UNIT — oil, Schiff, H. G. & Co., Haskell County, 78 thousand reported
- CLOUD, SALLIE E. -A- — oil, Cross Timbers Operating Company, Haskell County, 77 thousand reported
- REID, W. — oil, Mathis & Sons, Inc., Haskell County, 76 thousand reported
- HENDRICKS ESTATE "F" — gas, Glahn Resources, Inc., Haskell County, 76 thousand reported
- JAMES LEE NORMAN — oil, Harken Exploration Company, Haskell County, 76 thousand reported
- STONE — oil, L.C.S. Production Company, Haskell County, 75 thousand reported
- HENDRICKS, T. G. EST. -F- — gas, Glahn Resources, Inc., Haskell County, 74 thousand reported
- LAIRD — oil, Farmer, Hayden, Haskell County, 73 thousand reported
- CAHILL — oil, Wilcox Petroleum Operating LLC., Haskell County, 73 thousand reported
- WOLF CAMP UNIT — oil, Jacobs, C. E., Co., Haskell County, 72 thousand reported
- ASTIN — oil, D. A. B. Oil Service, Inc., Haskell County, 71 thousand reported
- HENDRICK H-17/334 UNIT — oil, Stovall Operating Co., Haskell County, 70 thousand reported
- FRIERSON — oil, Wilcox Petroleum Operating LLC., Haskell County, 69 thousand reported
- MANSKE — oil, Star Production, Inc., Haskell County, 68 thousand reported
- THOMAS, ANNA MAE — oil, Berg, Lester O., Haskell County, 68 thousand reported
- SWENSON BROS. — oil, Neatherlin, Earl Inc., Haskell County, 68 thousand reported
- ADAMS-GRAY UNIT — oil, Cross Timbers Operating Company, Haskell County, 67 thousand reported
- DIAMOND — oil, Titan Energy, Inc., Haskell County, 67 thousand reported
- PARDUE -D- — oil, MJM Oil & Gas, Inc., Haskell County, 67 thousand reported
- MCKINNEY, ELMER — oil, Long Trusts, The, Haskell County, 66 thousand reported
- HARRELL — oil, Ratts, Robert V. Inc., Haskell County, 66 thousand reported
- REAMES — oil, Adkins, R. L. Corp., Haskell County, 65 thousand reported
- LISLE, OLA MAE — oil, Cucharas Oil & Gas Company, Haskell County, 65 thousand reported
- WHALEN — oil, Rla Resources, Inc, Haskell County, 65 thousand reported
- BEVEL -A- — oil, Sojourner Drilling Corporation, Haskell County, 65 thousand reported
- HERRING, O. M. — oil, Stowe Energy, Inc., Haskell County, 64 thousand reported
- TIBBETS — oil, Walsh & Watts, Inc., Haskell County, 64 thousand reported
- LEACH, M. C. — oil, Langford, R. C. Operating Co., Haskell County, 64 thousand reported
- HENDRICK, T.G. ESTATE TR. 7 — oil, Harken Exploration Company, Haskell County, 62 thousand reported
- BARTON, T.W. — oil, WBR, Inc., Haskell County, 61 thousand reported
- GRICE — oil, L.C.S. Production Company, Haskell County, 61 thousand reported
- CANNON, JOE — oil, Bridwell Oil Co., Haskell County, 61 thousand reported
- FOUTS — oil, L.C.S. Production Company, Haskell County, 60 thousand reported
- KIERSEY — oil, Borders, Delbert L. Inc., Haskell County, 60 thousand reported
- CROUCH — oil, Wilcox Petroleum Operating LLC., Haskell County, 59 thousand reported
- CROUCH "D" — oil, Farmer, Lewis & Hayden, Haskell County, 59 thousand reported
- PLEASANTS — oil, Centaur Petroleum Corporation, Haskell County, 58 thousand reported
- WESTENHOVER — oil, Bristol Resources Corporation, Haskell County, 58 thousand reported
- BRADLEY — oil, P-Tex Petroleum, Inc., Haskell County, 58 thousand reported
- WOLF CAMP UNIT — oil, Jacobs, C. E., Co., Haskell County, 58 thousand reported
- SWENSON LAND & CATTLE COMPANY — oil, D. A. B. Oil Service, Inc., Haskell County, 56 thousand reported
- ROBERTSON, H. L. — oil, Ro-Jo, Inc., Haskell County, 55 thousand reported
- TEICHLEMAN, B. — oil, Rla Resources, Inc, Haskell County, 54 thousand reported
- GRISSOM "B" — oil, Walsh & Watts, Inc., Haskell County, 53 thousand reported
- RAMM UNIT — oil, Crown Equipment Co., Haskell County, 53 thousand reported
- ELLIS, M.C. — oil, Texaco E & P Inc., Haskell County, 51 thousand reported
- REDWINE — oil, Bristol Resources Corporation, Haskell County, 50 thousand reported
- HENDRICK L — oil, Jacobs, C. E., Co., Haskell County, 50 thousand reported
- CORNELIUS NORTH UNIT — oil, Petex, Haskell County, 49 thousand reported
- RIVER — oil, Patton, E. N. Oil Company, Inc., Haskell County, 49 thousand reported
- JY RANCH — gas, Adkins, R. L. Corp., Haskell County, 48 thousand reported
- TURNBOW, ALFRED — oil, Mexco Energy Corporation, Haskell County, 47 thousand reported
- HERREN "G" — oil, Alexander Energy Corporation, Haskell County, 47 thousand reported
- GRIFFITH — oil, Bristol Resources Corporation, Haskell County, 46 thousand reported
- SOUTH LANE — oil, Centaur Petroleum Corporation, Haskell County, 46 thousand reported
- ROBBINS, T. E. — oil, Susanna Corporation, Haskell County, 46 thousand reported
- HOLLOWAY, L.L. ESTATE — oil, Bright & Co., Haskell County, 45 thousand reported
- STRAIN, J. H. — oil, Breck Operating Corp., Haskell County, 45 thousand reported
- CLARK, REECE — oil, Patton, E. N. Oil Company, Inc., Haskell County, 44 thousand reported
- HESTER — oil, Sojourner Drilling Corporation, Haskell County, 44 thousand reported
- KRETSCHMER — oil, Fisher, Jack Inc., Haskell County, 43 thousand reported
- STRAIN, J. H. — oil, Sojourner Drilling Corporation, Haskell County, 42 thousand reported
- MUELLER, E. &J. — oil, Hofco, Inc., Haskell County, 40 thousand reported
- ROBERTS MCMEANS — oil, JTL Oil Company LLC, Haskell County, 40 thousand reported
- SWENSON BROS. "A" — oil, Neatherlin, Earl Inc., Haskell County, 39 thousand reported
- HENDRICK, T.G. EST. "14" — oil, Kendrick Oil Co., Haskell County, 39 thousand reported
- KRETSCHMER UNIT — oil, Fisher, Jack Inc., Haskell County, 39 thousand reported
- HENDRICK, T. G. ESTATE TRACT 6 — gas, Kendrick Oil Co., Haskell County, 39 thousand reported
- FLY, FLORENCE — oil, Bristol Resources Corporation, Haskell County, 39 thousand reported
- SCARBOROUGH — oil, S.B. Street Operating, Inc., Haskell County, 38 thousand reported
- MCGREGOR "B" — oil, Walsh & Watts, Inc., Haskell County, 38 thousand reported
- KITTLEY — oil, L.C.S. Production Company, Haskell County, 38 thousand reported
- DAVIS — oil, American Cascade Energy, Inc., Haskell County, 38 thousand reported
- PEAVEY, F.L. — oil, Mathis & Sons, Inc., Haskell County, 38 thousand reported
- CLARK — oil, Glahn Resources, Inc., Haskell County, 37 thousand reported
- PERRY, J.R. — oil, Perry, J. R. & Co., Haskell County, 37 thousand reported
- ASTIN, R.H. "A" — oil, Rust Oil Corp., Haskell County, 37 thousand reported
- NT UNIT — oil, TKP Petroleum, Inc., Haskell County, 37 thousand reported
- HEAD-JOHNSON — oil, Wiser Oil Company, The, Haskell County, 36 thousand reported
- MILLER, J.Z. — oil, Sojourner Drilling Corporation, Haskell County, 36 thousand reported
- MUELLER — oil, Leigh Operating Co., Haskell County, 35 thousand reported
- WALLACE, JOHN — oil, Perkins-Prothro Company, Haskell County, 35 thousand reported
- COBB — oil, Adkins, R. L. Corp., Haskell County, 35 thousand reported
- CLARK, J.A. — oil, Schiff, H. G. & Co., Haskell County, 34 thousand reported
- TEICHELMAN, A. H. — oil, Rister, Dewey, Haskell County, 33 thousand reported
- REAMES — oil, Adkins, R. L. Corp., Haskell County, 33 thousand reported
- LOGAN, H. B. — oil, Taylor, J. S. Inc., Haskell County, 32 thousand reported
- GRAY, T. L. — oil, Cross Timbers Operating Company, Haskell County, 32 thousand reported
- TANKERSLEY — oil, Dunigan Petroleum, Inc., Haskell County, 32 thousand reported
- CLARK-ULMER UNIT — oil, Herring, Ray, Haskell County, 32 thousand reported
- MATHIS — oil, L.C.S. Production Company, Haskell County, 32 thousand reported
- JENKINS — oil, Patton, E. N. Oil Company, Inc., Haskell County, 31 thousand reported
- BATES — oil, S.B. Street Operating, Inc., Haskell County, 30 thousand reported
- PLEASANTS D — oil, Centaur Petroleum Corporation, Haskell County, 30 thousand reported
- CANNON, J. M. — oil, Chan West Oil Corporation, Haskell County, 30 thousand reported
- PACE — oil, Centaur Petroleum Corporation, Haskell County, 30 thousand reported
- STASNY MEDFORD UNIT — oil, Foree Oil Company, Haskell County, 30 thousand reported
- HENDRICK, T. G. EST — oil, Kendrick Oil And Gas Company, Haskell County, 30 thousand reported
- HASKELL — oil, Heart Land Petroleum Corporation, Haskell County, 29 thousand reported
- LANE UNIT — oil, Centaur Petroleum Corporation, Haskell County, 29 thousand reported
- O'BRIEN "A" — oil, Flow Production Company, Haskell County, 29 thousand reported
- ROBERTSON, H. L. — oil, Ro-Jo, Inc., Haskell County, 29 thousand reported
- FARMERS COMPRESS — oil, TKP Petroleum, Inc., Haskell County, 29 thousand reported
- BURSON, C. G. — oil, S.B. Street Operating, Inc., Haskell County, 29 thousand reported
- HENDRICKS, T. G., EST. — oil, Frontier Operating Corporation, Haskell County, 28 thousand reported
- HENDRICK ESTATE A — oil, Morrell, W. R., Haskell County, 28 thousand reported
- CANNON-SASI UNIT — oil, Bridwell Oil Co., Haskell County, 28 thousand reported
- NETTIE, HENRY — oil, S.B. Street Operating, Inc., Haskell County, 27 thousand reported
- HAMILTON — oil, Canan Mowrey Operating, LLC, Haskell County, 27 thousand reported
- GILLESPIE — oil, Tri Sportsmen Energy, Inc., Haskell County, 26 thousand reported
- LANE — oil, Centaur Petroleum Corporation, Haskell County, 25 thousand reported
- NORTH O'BRIEN UNIT — oil, Wilco Properties, Inc., Haskell County, 25 thousand reported
- HUTCHISON, A. M. — oil, Williams Oil Company, Haskell County, 25 thousand reported
- HENDRICK H-16/328 — oil, Stovall Operating Co., Haskell County, 24 thousand reported
- ADAMS, T. — oil, Cross Timbers Operating Company, Haskell County, 24 thousand reported
- CLARK, REECE "A" — oil, Patton, E. N. Oil Company, Inc., Haskell County, 24 thousand reported
- NORMAN — oil, S.B. Street Operating, Inc., Haskell County, 24 thousand reported
- ADKINS — oil, Patton, E. N. Oil Company, Inc., Haskell County, 24 thousand reported
- STONE — oil, Lariat Land & Exploration, Inc., Haskell County, 23 thousand reported
- SCOGGINS-JEPSON UNIT — oil, Viola Prod., Inc., Haskell County, 23 thousand reported
- MICKEY — oil, S.B. Street Operating, Inc., Haskell County, 23 thousand reported
- HUGHES, LERA B. — oil, Santa Fe Exploration Company, Haskell County, 23 thousand reported
- HISEY — oil, Centaur Petroleum Corporation, Haskell County, 23 thousand reported
- CLOUD, ED — oil, MMG Oil Company, Haskell County, 23 thousand reported
- HARLOW — oil, Adkins, R. L. Corp., Haskell County, 22 thousand reported
- NEW — oil, Katsco Energy, Inc., Haskell County, 22 thousand reported
- ALICE — oil, S.B. Street Operating, Inc., Haskell County, 22 thousand reported
- PETERS — oil, Fisher, Jack Inc., Haskell County, 22 thousand reported
- KITTLEY, J. E. — oil, Joint Resources Company, Haskell County, 22 thousand reported
- ROBERTSON, H. L. — oil, Glahn Resources, Inc., Haskell County, 22 thousand reported
- REAMES, GRACE — oil, Adkins, R. L. Corp., Haskell County, 22 thousand reported
- SCOTT-MACE A — oil, Bright & Co., Haskell County, 22 thousand reported
- FOREE-HENDRICK — oil, Foree Oil Company, Haskell County, 21 thousand reported
- CROUCH A — oil, Wilcox Petroleum Operating LLC., Haskell County, 21 thousand reported
- RAMM UNIT — oil, Crown Equipment Co., Haskell County, 21 thousand reported
- KIMBROUGH, B. A. — oil, Lytle Creek Operating, Inc., Haskell County, 20 thousand reported
- MILLER, J.Z. — oil, Sojourner Drilling Corporation, Haskell County, 20 thousand reported
- MCGREGOR — oil, S.B. Street Operating, Inc., Haskell County, 20 thousand reported
- FLAT TOP RANCH AP — oil, NBX Energy, LLC, Haskell County, 20 thousand reported
- MEDFORD, R. — oil, Mckeever, Tyra, Swenson Venture, Haskell County, 20 thousand reported
- ADAMS — oil, S.B. Street Operating, Inc., Haskell County, 19 thousand reported
- GUFFEE — oil, Wilcox Petroleum Operating LLC., Haskell County, 19 thousand reported
- HENDRICK, T. G. EST. "14" — oil, Kendrick Oil Co., Haskell County, 19 thousand reported
- HENDRICK H - 23/265 — oil, Stovall Operating Co., Haskell County, 19 thousand reported
- STRAIN, J. H. — oil, Breck Operating Corp., Haskell County, 18 thousand reported
- R. H. ASTIN — oil, Rister Oil&Gas International LLC, Haskell County, 18 thousand reported
- JONES, FOSTER L. — oil, Bridwell Oil Co., Haskell County, 18 thousand reported
- SOJOURNER SAND UNIT — oil, Farmer, Lewis & Hayden, Haskell County, 18 thousand reported
- WILLIAMS — oil, Allegro Investments, Inc., Haskell County, 18 thousand reported
- GRISSOM - 2 — oil, Roil Resources Inc., Haskell County, 18 thousand reported
- CANNON-TANNER UNIT — oil, Bridwell Oil Co., Haskell County, 18 thousand reported
- ASTIN — oil, Breck Operating Corp., Haskell County, 18 thousand reported
Production figures are as reported to the Railroad Commission of Texas. Values shown on lease pages are estimates produced by fitting a decline curve to that reported history; they are not offers or appraisals.