Oil and gas leases in King County

King County, Texas has 396 oil and gas leases with production on file at the Railroad Commission. 321 of them are oil leases and 75 are gas leases. Between them they carry 2,019 wellbores. Reported volumes run from January 1993 to August 2026 and come to 75.6 million barrels of oil and 34.1 million Mcf of gas. 74 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 King County

How many oil and gas leases are in King County?: King County has 396 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has King County produced?: Leases in King County have reported 75,630,019 barrels of oil (bbl) and 34,080,442 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
Who are the biggest operators in King County?: Hunt Oil Company operates 135 of the 396 producing leases in King County, more than any other operator on record with the Railroad Commission of Texas.
How many operators are active in King County?: 74 operators file production returns for leases in King County.
How much are mineral rights in King County worth?: There is no single figure: what a mineral or royalty interest in King County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 396 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.

Hunt Oil Company — 135 leases
Gunn Oil Company — 22 leases
Medders Oil Company, Inc. — 21 leases
Burnett Oil Co., Inc. — 14 leases
Burns, P. C. Oil Producers Inc. — 13 leases
Clear Fork, Incorporated — 10 leases
Sauder Management Company — 9 leases
Citation Oil & Gas Corp. — 8 leases
Forest I Development Company — 6 leases
Gaea Services, Inc. — 6 leases
Petrotex, Inc. — 6 leases
Sojourner Drilling Corporation — 6 leases
Ard Drilling Company Inc. — 5 leases
Bridwell Oil Co. — 5 leases
Conoco Inc. — 5 leases
Edwards, Gus Co. — 5 leases
Ginnings Company — 5 leases
Medders Oil Company — 5 leases
Patton Exploration, Inc. — 5 leases
Pogo Producing Company — 5 leases
Arrington,David H. Oil & Gas,Inc — 4 leases
Citori Oil Company, LLC — 4 leases
Delwintex Oil & Gas Prop., Inc. — 4 leases
Exxon Corp. — 4 leases
Midpar L.P. — 4 leases
SRG Oil Corporation — 4 leases
Burgundy Oil & Gas, Inc. — 3 leases
Cholla Petroleum, Inc. — 3 leases
Marathon Oil Company — 3 leases
PPC Operating Company LLC — 3 leases
Plumb Resources, Inc. — 3 leases
Polk Petroleum, Inc. — 3 leases
Rising Star Energy, L.L.C. — 3 leases
Strange, D. D. — 3 leases
Alpine Petroleum — 2 leases
Anathema, Inc. — 2 leases
Apache Corporation — 2 leases
Bullet Development, LLC — 2 leases
Doodle-Bug, Incorporated — 2 leases
Energy Resource & Develop., Corp — 2 leases
J & J Trading — 2 leases
Nagual Exploration LLC — 2 leases
Oryx Energy Company — 2 leases
Schalk Oil Company, Inc. — 2 leases
Westico Energy Co. — 2 leases
Wheat, Buck Resources, Inc. — 2 leases
Bettis, Boyle & Stovall — 1 lease
Big State Industries, Inc. — 1 lease
Buck Wheat Resources, L.P. — 1 lease
Corda Corporation — 1 lease
Covenant Operating, LLC — 1 lease
CRT'S, Inc. — 1 lease
Delta Oil & Gas Ltd. — 1 lease
Freeman Expl. & Prod. Co., Inc. — 1 lease
Gregco, Inc. — 1 lease
Gunn, R. D. — 1 lease
Helmcamp, Inc. — 1 lease
Henderson & Erickson, Inc. — 1 lease
Leclair Operating Co., Inc. — 1 lease
Marshall & Winston, Inc. — 1 lease

Railroad Commission districts

District 8A — 382 leases
District 7B — 14 leases

Leases — page 1 of 2

BURNETT RANCH CO2 FLOOD "PA1" — oil, Hunt Oil Company, King County, 9.9 million reported
BURNETT, S. B. ESTATE — oil, Hunt Oil Company, King County, 5.6 million reported
A.W.M. — oil, Burnett Oil Co., Inc., King County, 2.8 million reported
BURNETT, S. B. ESTATE "D" — oil, Hunt Oil Company, King County, 2.7 million reported
MASTERSON "J-2" UNIT — gas, Burns, P. C. Oil Producers Inc., King County, 2.5 million reported
MASTERSON, FLOYCE — gas, Edwards, Gus Co., King County, 2.2 million reported
FORKS GGG — oil, Medders Oil Company, Inc., King County, 2.2 million reported
MASTERSON "J-3" UNIT — gas, Rising Star Energy, L.L.C., King County, 2.0 million reported
PITCHFORK BALT WATERFLOOD UNIT — oil, Medders Oil Company, Inc., King County, 1.5 million reported
BATEMAN TRUST EST. ACCOUNT NO. 1 — oil, Exxon Corp., King County, 1.5 million reported
BURNETT, S. B. ESTATE "D" — oil, Citation Oil & Gas Corp., King County, 1.4 million reported
FORKS DDD — oil, Medders Oil Company, Inc., King County, 1.4 million reported
SPRINGER WILSON 192 — oil, Wheat, Buck Resources, Inc., King County, 1.4 million reported
FORKS CCC — oil, Medders Oil Company, Inc., King County, 1.4 million reported
BURNETT, S.B. EST. "1A/2A SAND" — oil, Hunt Oil Company, King County, 1.3 million reported
MASTERSON PN — gas, Gunn Oil Company, King County, 1.2 million reported
MASTERSON B — gas, Burns, P. C. Oil Producers Inc., King County, 1.2 million reported
LOWRANCE, ED — gas, Gaea Services, Inc., King County, 1.2 million reported
MASTERSON — gas, Gaea Services, Inc., King County, 1.2 million reported
BURNETT, S. B. ESTATE "RRR" — oil, Hunt Oil Company, King County, 1.1 million reported
MASTERSON RANCH — gas, Burns, P. C. Oil Producers Inc., King County, 1.1 million reported
MASTERSON "B" — gas, Burns, P. C. Oil Producers Inc., King County, 1.0 million reported
MORRISON SOUTH GAS UNIT — gas, Bridwell Oil Co., King County, 955 thousand reported
MASTERSON "J-1" UNIT — gas, Burns, P. C. Oil Producers Inc., King County, 918 thousand reported
HADDAD-RATLIFF — gas, Edwards, Gus Co., King County, 916 thousand reported
MASTERSON "B" UNIT — gas, Burns, P. C. Oil Producers Inc., King County, 887 thousand reported
BURNETT, S. B. ESTATE "NB" — oil, Hunt Oil Company, King County, 862 thousand reported
BURNETT, S. B. ESTATE "RRR" — oil, Hunt Oil Company, King County, 837 thousand reported
TAYLOR — gas, Southwest Royalties, Inc., King County, 835 thousand reported
BURNETT, S. B. ESTATE "N" — oil, Hunt Oil Company, King County, 807 thousand reported
PITCHFORK — oil, Cholla Petroleum, Inc., King County, 769 thousand reported
MASTERSON — gas, Burns, P. C. Oil Producers Inc., King County, 760 thousand reported
BURNETT, S. B. ESTATE "W" — oil, Hunt Oil Company, King County, 754 thousand reported
MASTERSON, FLOYCE — gas, Edwards, Gus Co., King County, 753 thousand reported
BATEMAN TRUST EST. ACCOUNT NO. 1 — oil, Exxon Corp., King County, 751 thousand reported
BIG -S- (TWIN PEAKS) UNIT — oil, Hunt Oil Company, King County, 736 thousand reported
BURNETT, S. B. ESTATE "NA" — oil, Hunt Oil Company, King County, 733 thousand reported
BISSETT, NE (STRAWN LIME) — oil, Gunn Oil Company, King County, 724 thousand reported
RATLIFF — gas, Citori Oil Company, LLC, King County, 718 thousand reported
MASTERSON A — gas, Burns, P. C. Oil Producers Inc., King County, 708 thousand reported
QQQ/ROSS (STRAWN SAND) UNIT — oil, Hunt Oil Company, King County, 698 thousand reported
BURNETT, S. B. ESTATE "NA" — oil, Hunt Oil Company, King County, 680 thousand reported
BURNETT, S. B. ESTATE "WM" — oil, Hunt Oil Company, King County, 674 thousand reported
SIMPSON — oil, Nosivad Oil, Inc., King County, 671 thousand reported
BEADHEAD HARE'S EAR 41 — gas, Arrington,David H. Oil & Gas,Inc, King County, 659 thousand reported
BURNETT, S.B. EST. "W" — oil, Hunt Oil Company, King County, 655 thousand reported
SOMERVELL 6666 FO2 — oil, Medders Oil Company, Inc., King County, 643 thousand reported
MASTERSON PN — gas, Gunn Oil Company, King County, 639 thousand reported
MASTERSON RANCH 40 — gas, Petrotex, Inc., King County, 635 thousand reported
BURNETT, S. B. ESTATE — gas, Gunn Oil Company, King County, 589 thousand reported
BATEMAN TRUST EST. ACCOUNT NO. 1 — oil, PPC Operating Company LLC, King County, 587 thousand reported
RATLIFF — gas, Citori Oil Company, LLC, King County, 580 thousand reported
MASTERSON "A" — gas, Burgundy Oil & Gas, Inc., King County, 576 thousand reported
FORKS "1" — oil, Medders Oil Company, Inc., King County, 575 thousand reported
MASTERSON, R. S. — gas, Midpar L.P., King County, 566 thousand reported
BURNETT, S. B. ESTATE "YA" — oil, Hunt Oil Company, King County, 562 thousand reported
MASTERSON A — gas, Burns, P. C. Oil Producers Inc., King County, 540 thousand reported
MASTERSON, R. B. — gas, Midpar L.P., King County, 511 thousand reported
BURNETT, S. B. ESTATE "WA" — oil, Hunt Oil Company, King County, 509 thousand reported
BURNETT/GUNN AWM "D" — oil, Burnett Oil Co., Inc., King County, 501 thousand reported
MASTERSON, R. B. — gas, Midpar L.P., King County, 500 thousand reported
BURNETT AWM RR — oil, Gunn Oil Company, King County, 499 thousand reported
BATEMAN TRUST EST. ACCOUNT NO. 1 — oil, Exxon Corp., King County, 495 thousand reported
JOHNSON, FANNIE MAE — oil, Gunn Oil Company, King County, 494 thousand reported
MASTERSON RANCH "J" — oil, Forest I Development Company, King County, 478 thousand reported
PITCHFORK LAND & CATTLE CO. — oil, Medders Oil Company, King County, 476 thousand reported
BURNETT, S. B. ESTATE "N" — oil, Hunt Oil Company, King County, 459 thousand reported
BURNETT/GUNN AWM "D" — oil, Burnett Oil Co., Inc., King County, 448 thousand reported
BURNETT, S. B. EST "4B SAND" — oil, Hunt Oil Company, King County, 443 thousand reported
FORKS BBB — oil, Medders Oil Company, Inc., King County, 440 thousand reported
BURNETT, S. B. ESTATE — gas, Gunn Oil Company, King County, 437 thousand reported
MASTERSON, R. B. -A- — gas, Ard Drilling Company Inc., King County, 437 thousand reported
SPRINGER 210 — oil, Sauder Management Company, King County, 435 thousand reported
SOMERVELL 6666 — oil, Medders Oil Company, Inc., King County, 432 thousand reported
BURNETT, S. B. ESTATE "Y" — oil, Hunt Oil Company, King County, 428 thousand reported
BURNETT, S. B. ESTATE "GG" — oil, Hunt Oil Company, King County, 428 thousand reported
FORKS SOUTH BALT UNIT — oil, Medders Oil Company, Inc., King County, 426 thousand reported
MASTERSON "A" — gas, Burgundy Oil & Gas, Inc., King County, 409 thousand reported
BURNETT, S. B. ESTATE "RRR" — oil, Hunt Oil Company, King County, 394 thousand reported
BURNETT, S. B. ESTATE "N" — oil, Hunt Oil Company, King County, 390 thousand reported
PITCHFORK OOO — oil, Medders Oil Company, Inc., King County, 389 thousand reported
NIBLO "73" — oil, Clear Fork, Incorporated, King County, 375 thousand reported
MASTERSON UNIT — gas, Burns, P. C. Oil Producers Inc., King County, 369 thousand reported
PITCHFORK YYY — oil, Medders Oil Company, Inc., King County, 363 thousand reported
BURNETT, S. B. ESTATE "UUU" — oil, Hunt Oil Company, King County, 356 thousand reported
BEADHEAD EMERGER 65 — gas, Arrington,David H. Oil & Gas,Inc, King County, 356 thousand reported
BURNETT, S. B. ESTATE "D" — oil, Citation Oil & Gas Corp., King County, 353 thousand reported
SPRINGER "A" — oil, Ginnings Company, King County, 342 thousand reported
BURNETT, S. B. ESTATE "GG" — oil, Hunt Oil Company, King County, 342 thousand reported
BURNETT, S. B. ESTATE NORTH — oil, Hunt Oil Company, King County, 340 thousand reported
MASTERSON — gas, Burns, P. C. Oil Producers Inc., King County, 334 thousand reported
JOHNSON — gas, Corda Corporation, King County, 330 thousand reported
BURNETT, S. B. ESTATE "N" — oil, Hunt Oil Company, King County, 323 thousand reported
SOWELL "6" — oil, Hunt Oil Company, King County, 322 thousand reported
MASTERSON "A-6" — gas, Rising Star Energy, L.L.C., King County, 312 thousand reported
BURNETT, S. B. ESTATE "GG" — oil, Hunt Oil Company, King County, 308 thousand reported
NIBLO "48" — oil, Polk Petroleum, Inc., King County, 302 thousand reported
BEADHEAD SCUD 53 — gas, Arrington,David H. Oil & Gas,Inc, King County, 298 thousand reported
PITCHFORK NB — oil, Gunn Oil Company, King County, 298 thousand reported
BURNETT, S. B. ESTATE "C" — oil, Hunt Oil Company, King County, 288 thousand reported
BURNETT, S. B. ESTATE "RRR" — oil, Hunt Oil Company, King County, 282 thousand reported
BURNETT, S. B. ESTATE "UUU" — oil, Hunt Oil Company, King County, 271 thousand reported
MASTERSON RANCH — gas, Petrotex, Inc., King County, 265 thousand reported
WALKER GAS UNIT — gas, Bridwell Oil Co., King County, 263 thousand reported
BURNETT, S. B. ESTATE "RRR" — oil, Hunt Oil Company, King County, 263 thousand reported
BURNETT, S. B. ESTATE "AAA" — oil, Hunt Oil Company, King County, 260 thousand reported
MASTERSON RANCH — gas, Petrotex, Inc., King County, 259 thousand reported
TUMBLEWEED FOSTER UNIT — oil, Oryx Energy Company, King County, 257 thousand reported
MASTERSON, R. B. — gas, Midpar L.P., King County, 245 thousand reported
SPRINGER 191-C — oil, Sauder Management Company, King County, 241 thousand reported
MORRISON NORTH GAS UNIT — gas, Bridwell Oil Co., King County, 239 thousand reported
BACON "E" — oil, SRG Oil Corporation, King County, 239 thousand reported
BURNETT, S.B. EST "3B SAND" — oil, Hunt Oil Company, King County, 228 thousand reported
MASTERSON RANCH "JJ" — oil, Plumb Resources, Inc., King County, 223 thousand reported
MASTERSON RANCH "R" — gas, Forest I Development Company, King County, 215 thousand reported
BURNETT, S. B. ESTATE — oil, Hunt Oil Company, King County, 212 thousand reported
MANGIS — oil, Gunn Oil Company, King County, 209 thousand reported
BURNETT, S. B. — gas, Gunn Oil Company, King County, 202 thousand reported
NIBLO, SYDNEY — oil, Patton Exploration, Inc., King County, 200 thousand reported
BACON, T. — oil, SRG Oil Corporation, King County, 199 thousand reported
BURNETT, S. B. ESTATE "GG" — oil, Hunt Oil Company, King County, 198 thousand reported
FOSTER 212 — oil, Energy Resource & Develop., Corp, King County, 195 thousand reported
PITCHFORK VVV — oil, Medders Oil Company, Inc., King County, 195 thousand reported
FORKS EEE — oil, Medders Oil Company, Inc., King County, 193 thousand reported
BURNETT, S. B. ESTATE "RRR" — oil, Hunt Oil Company, King County, 187 thousand reported
LOWRANCE, ED "A" — gas, Gaea Services, Inc., King County, 184 thousand reported
BURNETT, S. B. ESTATE "C" — oil, Hunt Oil Company, King County, 178 thousand reported
BURNETT, S. B. ESTATE "WM" — oil, Hunt Oil Company, King County, 178 thousand reported
BURNETT, S. B. ESTATE "NA" — oil, Hunt Oil Company, King County, 176 thousand reported
BURNETT, S. B. ESTATE "AAAA" — oil, Hunt Oil Company, King County, 174 thousand reported
SPRINGER, W. A. "B" — oil, Oryx Energy Company, King County, 172 thousand reported
ORSBORN UNIT — oil, Conoco Inc., King County, 169 thousand reported
BURNETT, S. B. ESTATE "YA" — oil, Hunt Oil Company, King County, 168 thousand reported
SOMERVELL W HHH — oil, Medders Oil Company, Inc., King County, 167 thousand reported
PITCHFORK-MAVERICK "B-7" BATTERY — oil, Medders Oil Company, King County, 166 thousand reported
BURNETT, S. B. ESTATE "YA" — oil, Hunt Oil Company, King County, 164 thousand reported
BURNETT, S. B. ESTATE "AAA" — oil, Hunt Oil Company, King County, 162 thousand reported
PITCHFORK HHH "B" — oil, Medders Oil Company, Inc., King County, 162 thousand reported
AWM "E" — oil, Burnett Oil Co., Inc., King County, 157 thousand reported
HOWELL, G.L. — oil, Conoco Inc., King County, 157 thousand reported
BURNETT, S. B. ESTATE "XA1" — oil, Hunt Oil Company, King County, 155 thousand reported
ORSBORN — oil, Conoco Inc., King County, 154 thousand reported
GG (STRAWN 5400) UNIT — oil, Hunt Oil Company, King County, 153 thousand reported
FOSTER — oil, Schalk Oil Company, Inc., King County, 153 thousand reported
BURNETT, S. B. ESTATE "BBBB" — oil, Hunt Oil Company, King County, 153 thousand reported
SIMPSON — oil, Westico Energy Co., King County, 150 thousand reported
BATEMAN RANCH STATE — oil, Exxon Corp., King County, 146 thousand reported
AWM "E" — oil, Burnett Oil Co., Inc., King County, 144 thousand reported
MASTERSON — gas, Burns, P. C. Oil Producers Inc., King County, 144 thousand reported
BURNETT, S. B. ESTATE "C" — oil, Citation Oil & Gas Corp., King County, 143 thousand reported
GIBSON, J. J. "A" — oil, Gunn Oil Company, King County, 143 thousand reported
MASTERSON RANCH 41 — gas, Trek Resources, Inc., King County, 140 thousand reported
LOWRANCE, ED — gas, Gaea Services, Inc., King County, 140 thousand reported
MASTERSON RANCH — gas, Edwards, Gus Co., King County, 139 thousand reported
BURNETT, S. B. — oil, Gunn, R. D., King County, 139 thousand reported
BURNETT. S. B. ESTATE "YA" — oil, Hunt Oil Company, King County, 134 thousand reported
FORKS CCC 12-10-99 — oil, Medders Oil Company, Inc., King County, 129 thousand reported
LOWRANCE, ED — gas, Gaea Services, Inc., King County, 123 thousand reported
MASTERSON — gas, Citori Oil Company, LLC, King County, 122 thousand reported
PITCHFORK "3" — oil, Sauder Management Company, King County, 122 thousand reported
MASTERSON RANCH "A" — oil, Forest I Development Company, King County, 121 thousand reported
BURNETT, S. B. ESTATE "WA" — oil, Hunt Oil Company, King County, 119 thousand reported
MASTERSON "66" — gas, Montgomery Petroleum, Inc., King County, 119 thousand reported
PEN BRANCH (UPPER STRAWN) UNIT — oil, Hunt Oil Company, King County, 115 thousand reported
ROSS "A" — oil, Hunt Oil Company, King County, 113 thousand reported
MASTERSON A-6 — gas, Burns, P. C. Oil Producers Inc., King County, 110 thousand reported
PITCHFORK IIII — oil, Medders Oil Company, Inc., King County, 109 thousand reported
NIBLO "A" — oil, Polk Petroleum, Inc., King County, 109 thousand reported
BURNETT, S. B. ESTATE "AY" — oil, Hunt Oil Company, King County, 108 thousand reported
PITCHFORK XXX — oil, Medders Oil Company, Inc., King County, 107 thousand reported
BURNETT, S. B. ESTATE "WM" — oil, Hunt Oil Company, King County, 107 thousand reported
SIMPSON — oil, Alpine Petroleum, King County, 105 thousand reported
BACON, TRUMAN AND TOMMY — oil, Anathema, Inc., King County, 105 thousand reported
BURNETT, S. B. ESTATE "3A" — oil, Hunt Oil Company, King County, 105 thousand reported
NIBLO "88-A" — oil, Patton Exploration, Inc., King County, 105 thousand reported
MASTERSON "B" — gas, Burgundy Oil & Gas, Inc., King County, 104 thousand reported
BURNETT, S. B. ESTATE "CA" — oil, Hunt Oil Company, King County, 103 thousand reported
BURNETT, S. B. ESTATE "WC" — oil, Hunt Oil Company, King County, 101 thousand reported
SIMPSON — oil, Westico Energy Co., King County, 101 thousand reported
T. B. HAVINS "A" — oil, Nagual Exploration LLC, King County, 101 thousand reported
SOWELL "6" — oil, Hunt Oil Company, King County, 98 thousand reported
BURNETT, S. B. ESTATE "C" — oil, Citation Oil & Gas Corp., King County, 96 thousand reported
SOWELL "6" — oil, Hunt Oil Company, King County, 95 thousand reported
BURNETT, S. B. ESTATE "N" — oil, Hunt Oil Company, King County, 90 thousand reported
BURNETT, S. B. ESTATE — oil, Hunt Oil Company, King County, 86 thousand reported
ROSS, W. R. — oil, Hunt Oil Company, King County, 86 thousand reported
RATLIFF ETAL — gas, Doodle-Bug, Incorporated, King County, 86 thousand reported
MASTERSON RANCH "A" — oil, Forest I Development Company, King County, 85 thousand reported
BURNETT, S. B. ESTATE "B" — oil, Citation Oil & Gas Corp., King County, 84 thousand reported
FOSTER — oil, Energy Resource & Develop., Corp, King County, 84 thousand reported
ROSS, W. R. "A" — oil, Marathon Oil Company, King County, 83 thousand reported
BURNETT, S. B. ESTATE "BBBB" — oil, Hunt Oil Company, King County, 82 thousand reported
MASTERSON, R. B. -A- — gas, Ard Drilling Company Inc., King County, 81 thousand reported
NIBLO 73 "A" — oil, Clear Fork, Incorporated, King County, 80 thousand reported
SIMPSON — oil, Hunt Oil Company, King County, 78 thousand reported
SOWELL "A" — oil, Burnett Oil Co., Inc., King County, 78 thousand reported
DAVIDSON — oil, Sauder Management Company, King County, 78 thousand reported
BURNETT, S. B. ESTATE "WA" — oil, Hunt Oil Company, King County, 77 thousand reported
BATEMAN RANCH BB — oil, Primrose Operating Company, King County, 77 thousand reported
BURNETT, S. B. ESTATE — gas, Gunn Oil Company, King County, 75 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.