Oil and gas leases in ST. Mary Land & Exploration Co.

ST. Mary Land & Exploration Co. is a Texas operator, Commission number 810874, with 225 leases reporting production across 16 counties. 22 of them are oil leases and 203 are gas leases. Between them they carry 256 wellbores. Reported volumes run from January 1993 to August 2026 and come to 2.7 million barrels of oil and 119.0 million Mcf of gas. 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 ST. Mary Land & Exploration Co.

How many oil and gas leases are in ST. Mary Land & Exploration Co.?: ST. Mary Land & Exploration Co. has 225 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has ST. Mary Land & Exploration Co. produced?: Leases in ST. Mary Land & Exploration Co. have reported 2,652,421 barrels of oil (bbl) and 119,046,143 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
How much are mineral rights in ST. Mary Land & Exploration Co. worth?: There is no single figure: what a mineral or royalty interest in ST. Mary Land & Exploration Co. is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 225 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.

Counties here

Webb County — 100 leases
Limestone County — 48 leases
Shelby County — 17 leases
Panola County — 16 leases
Andrews County — 11 leases
Nacogdoches County — 7 leases
Upton County — 7 leases
Rusk County — 5 leases
San Augustine County — 5 leases
Borden County — 2 leases
Galveston County — 2 leases
Cass County — 1 lease
Dimmit County — 1 lease
Maverick County — 1 lease
Smith County — 1 lease
Wood County — 1 lease

Railroad Commission districts

District 04 — 91 leases
District 06 — 53 leases
District 05 — 48 leases
District 01 — 11 leases
District 08 — 11 leases
District 7C — 7 leases
District 03 — 2 leases
District 8A — 2 leases

Leases — page 1 of 2

USA — gas, ST. Mary Land & Exploration Co., Shelby County, 7.7 million reported
USA — gas, ST. Mary Land & Exploration Co., Shelby County, 6.2 million reported
BOISE SOUTHERN ET AL — gas, ST. Mary Land & Exploration Co., Panola County, 3.3 million reported
USA — gas, ST. Mary Land & Exploration Co., Shelby County, 3.2 million reported
ST 236/237 UNIT — gas, ST. Mary Land & Exploration Co., Galveston County, 2.8 million reported
USA 'A' — gas, ST. Mary Land & Exploration Co., Shelby County, 2.8 million reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 2.5 million reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 2.4 million reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 2.3 million reported
HICKEY, F.S. ET AL — gas, ST. Mary Land & Exploration Co., Panola County, 2.2 million reported
HICKEY, F.S. ET AL — gas, ST. Mary Land & Exploration Co., Panola County, 2.2 million reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 2.1 million reported
U.S.A. LB — gas, ST. Mary Land & Exploration Co., Nacogdoches County, 2.1 million reported
KERIS — gas, ST. Mary Land & Exploration Co., Limestone County, 2.0 million reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 2.0 million reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 2.0 million reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 1.9 million reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 1.9 million reported
USA — gas, ST. Mary Land & Exploration Co., Shelby County, 1.9 million reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 1.9 million reported
MAST, L.B. — gas, ST. Mary Land & Exploration Co., Nacogdoches County, 1.9 million reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 1.8 million reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 1.7 million reported
KERIS — gas, ST. Mary Land & Exploration Co., Limestone County, 1.7 million reported
BRISCOE STATE AR — gas, ST. Mary Land & Exploration Co., Webb County, 1.7 million reported
RAMOS — gas, ST. Mary Land & Exploration Co., Nacogdoches County, 1.7 million reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 1.6 million reported
RICHARDSON A — gas, ST. Mary Land & Exploration Co., Panola County, 1.6 million reported
BRISCOE G — gas, ST. Mary Land & Exploration Co., Webb County, 1.5 million reported
KERIS — gas, ST. Mary Land & Exploration Co., Limestone County, 1.4 million reported
MIDDLEBROOK UNIT — gas, ST. Mary Land & Exploration Co., Nacogdoches County, 1.4 million reported
BOISE SOUTHERN ET AL — gas, ST. Mary Land & Exploration Co., Panola County, 1.4 million reported
BRISCOE G GU3 — gas, ST. Mary Land & Exploration Co., Webb County, 1.3 million reported
KERIS — gas, ST. Mary Land & Exploration Co., Limestone County, 1.2 million reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 1.2 million reported
WEST ESPARZA — gas, ST. Mary Land & Exploration Co., Nacogdoches County, 1.2 million reported
RICHARDSON A — gas, ST. Mary Land & Exploration Co., Panola County, 1.2 million reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 1.1 million reported
BRISCOE "B" — gas, ST. Mary Land & Exploration Co., Webb County, 1.1 million reported
KERIS — gas, ST. Mary Land & Exploration Co., Limestone County, 1.1 million reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 1.0 million reported
SMITH, GEORGE F. — gas, ST. Mary Land & Exploration Co., San Augustine County, 1.0 million reported
CARTWRIGHT — gas, ST. Mary Land & Exploration Co., Shelby County, 989 thousand reported
EAST ESPARZA — gas, ST. Mary Land & Exploration Co., Nacogdoches County, 975 thousand reported
BRISCOE G GU 1 — gas, ST. Mary Land & Exploration Co., Webb County, 949 thousand reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 871 thousand reported
OSBORNE — gas, ST. Mary Land & Exploration Co., Panola County, 865 thousand reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 848 thousand reported
USA — gas, ST. Mary Land & Exploration Co., Shelby County, 824 thousand reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 823 thousand reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 794 thousand reported
STATE TRACT 345 — gas, ST. Mary Land & Exploration Co., Galveston County, 787 thousand reported
REBECCA — oil, ST. Mary Land & Exploration Co., Borden County, 785 thousand reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 736 thousand reported
KERIS — gas, ST. Mary Land & Exploration Co., Limestone County, 712 thousand reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 682 thousand reported
OSBORNE GAS UNIT — gas, ST. Mary Land & Exploration Co., Panola County, 619 thousand reported
POWELL — gas, ST. Mary Land & Exploration Co., Shelby County, 618 thousand reported
KERIS — gas, ST. Mary Land & Exploration Co., Limestone County, 591 thousand reported
KERIS — gas, ST. Mary Land & Exploration Co., Limestone County, 567 thousand reported
HEADRICK — gas, ST. Mary Land & Exploration Co., Panola County, 560 thousand reported
CARTER, OLA EST. — gas, ST. Mary Land & Exploration Co., Panola County, 559 thousand reported
U.S.A. LB — gas, ST. Mary Land & Exploration Co., Nacogdoches County, 554 thousand reported
CARTER, OLA EST. — gas, ST. Mary Land & Exploration Co., Panola County, 551 thousand reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 549 thousand reported
USA — gas, ST. Mary Land & Exploration Co., Shelby County, 548 thousand reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 541 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 540 thousand reported
FRANCES — oil, ST. Mary Land & Exploration Co., Upton County, 504 thousand reported
KERIS — gas, ST. Mary Land & Exploration Co., Limestone County, 497 thousand reported
SEMPRA BECK — gas, ST. Mary Land & Exploration Co., Panola County, 493 thousand reported
USA — gas, ST. Mary Land & Exploration Co., Shelby County, 482 thousand reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 467 thousand reported
OSBORNE — gas, ST. Mary Land & Exploration Co., Panola County, 459 thousand reported
WEEKS — gas, ST. Mary Land & Exploration Co., Shelby County, 455 thousand reported
CARTER, OLA EST. — gas, ST. Mary Land & Exploration Co., Panola County, 438 thousand reported
TONYA — oil, ST. Mary Land & Exploration Co., Borden County, 431 thousand reported
LAWSON — gas, ST. Mary Land & Exploration Co., Shelby County, 363 thousand reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 358 thousand reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 357 thousand reported
LA BANDERA RANCH — gas, ST. Mary Land & Exploration Co., Dimmit County, 342 thousand reported
MCWHIRTER — gas, ST. Mary Land & Exploration Co., Wood County, 340 thousand reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 337 thousand reported
REAGAN ESTATE — gas, ST. Mary Land & Exploration Co., Limestone County, 336 thousand reported
REAGAN ESTATE — gas, ST. Mary Land & Exploration Co., Limestone County, 321 thousand reported
CORDRAY — gas, ST. Mary Land & Exploration Co., Shelby County, 307 thousand reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 295 thousand reported
BRISCOE "C" — gas, ST. Mary Land & Exploration Co., Webb County, 292 thousand reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 278 thousand reported
TYLER — oil, ST. Mary Land & Exploration Co., Upton County, 276 thousand reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 275 thousand reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 248 thousand reported
BRISCOE "B" — gas, ST. Mary Land & Exploration Co., Webb County, 244 thousand reported
RICHARDSON A — gas, ST. Mary Land & Exploration Co., Panola County, 240 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 232 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 219 thousand reported
BRISCOE "J" — gas, ST. Mary Land & Exploration Co., Webb County, 210 thousand reported
REXENE — oil, ST. Mary Land & Exploration Co., Upton County, 206 thousand reported
CAGE — gas, ST. Mary Land & Exploration Co., Maverick County, 203 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 176 thousand reported
BRISCOE "J" — gas, ST. Mary Land & Exploration Co., Webb County, 163 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 159 thousand reported
NICHOLAS — gas, ST. Mary Land & Exploration Co., Limestone County, 155 thousand reported
GATES B — gas, ST. Mary Land & Exploration Co., Webb County, 150 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 147 thousand reported
BRASK RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 145 thousand reported
WHITE — gas, ST. Mary Land & Exploration Co., Limestone County, 145 thousand reported
GATES E — gas, ST. Mary Land & Exploration Co., Webb County, 137 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 135 thousand reported
FRANKE — gas, ST. Mary Land & Exploration Co., Shelby County, 134 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 129 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 128 thousand reported
HILLTOP — gas, ST. Mary Land & Exploration Co., Panola County, 124 thousand reported
GATES RANCH FGH — gas, ST. Mary Land & Exploration Co., Webb County, 123 thousand reported
RICHEY — oil, ST. Mary Land & Exploration Co., Rusk County, 123 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 120 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 116 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 111 thousand reported
GATES E — gas, ST. Mary Land & Exploration Co., Webb County, 108 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 108 thousand reported
USA-BL — gas, ST. Mary Land & Exploration Co., San Augustine County, 104 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 103 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 98 thousand reported
BALWAHAN (PALUXY B) UNIT — oil, ST. Mary Land & Exploration Co., Smith County, 95 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 88 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 87 thousand reported
BRISCOE "J" — gas, ST. Mary Land & Exploration Co., Webb County, 85 thousand reported
UNIVERSITY LISA B — gas, ST. Mary Land & Exploration Co., Andrews County, 85 thousand reported
UNIVERSITY 1 SABRINA — oil, ST. Mary Land & Exploration Co., Andrews County, 84 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 83 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 80 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 79 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 76 thousand reported
GATES RANCH D 4 — gas, ST. Mary Land & Exploration Co., Webb County, 75 thousand reported
BRISCOE "B" — gas, ST. Mary Land & Exploration Co., Webb County, 75 thousand reported
BRASK STATE 1846 — gas, ST. Mary Land & Exploration Co., Webb County, 71 thousand reported
REAGAN ESTATE — gas, ST. Mary Land & Exploration Co., Limestone County, 71 thousand reported
BRISCOE "C" — gas, ST. Mary Land & Exploration Co., Webb County, 66 thousand reported
GATES RANCH FGH — gas, ST. Mary Land & Exploration Co., Webb County, 66 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 64 thousand reported
BRISCOE "B" — gas, ST. Mary Land & Exploration Co., Webb County, 64 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 62 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 59 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 57 thousand reported
KERIS — gas, ST. Mary Land & Exploration Co., Limestone County, 57 thousand reported
MCCAULEY — gas, ST. Mary Land & Exploration Co., Rusk County, 56 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 56 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 56 thousand reported
GATES RANCH "Y" — gas, ST. Mary Land & Exploration Co., Webb County, 56 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 54 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 53 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 52 thousand reported
GATES 05S — gas, ST. Mary Land & Exploration Co., Webb County, 49 thousand reported
DORCUS — oil, ST. Mary Land & Exploration Co., Upton County, 48 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 46 thousand reported
UNIVESITY KARIN C — gas, ST. Mary Land & Exploration Co., Andrews County, 46 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 45 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 45 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 45 thousand reported
GATES RANCH "Y" — gas, ST. Mary Land & Exploration Co., Webb County, 45 thousand reported
WILSON — gas, ST. Mary Land & Exploration Co., Limestone County, 45 thousand reported
BRISCOE "C" — gas, ST. Mary Land & Exploration Co., Webb County, 40 thousand reported
GATES E — gas, ST. Mary Land & Exploration Co., Webb County, 38 thousand reported
UNIVERSITY DONNA A — gas, ST. Mary Land & Exploration Co., Andrews County, 37 thousand reported
GATES 05S — gas, ST. Mary Land & Exploration Co., Webb County, 37 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 35 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 33 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 31 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 31 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 29 thousand reported
BLACK STONE PB — gas, ST. Mary Land & Exploration Co., Shelby County, 27 thousand reported
PETTY RANCH — gas, ST. Mary Land & Exploration Co., Webb County, 26 thousand reported
REAGAN ESTATE — gas, ST. Mary Land & Exploration Co., Limestone County, 26 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 25 thousand reported
UNIVERSITY DONNA C — gas, ST. Mary Land & Exploration Co., Andrews County, 25 thousand reported
UNIVERSITY DEBRA C — gas, ST. Mary Land & Exploration Co., Andrews County, 25 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 25 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 22 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 21 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 17 thousand reported
MARTIN — oil, ST. Mary Land & Exploration Co., San Augustine County, 17 thousand reported
PATE A — oil, ST. Mary Land & Exploration Co., Shelby County, 16 thousand reported
BRISCOE "B" — gas, ST. Mary Land & Exploration Co., Webb County, 16 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 16 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 15 thousand reported
OGLESBEE — oil, ST. Mary Land & Exploration Co., San Augustine County, 15 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 14 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 14 thousand reported
ELLINGTON TRUST — oil, ST. Mary Land & Exploration Co., Cass County, 14 thousand reported
PATE — oil, ST. Mary Land & Exploration Co., Shelby County, 13 thousand reported
15MILLAN — oil, ST. Mary Land & Exploration Co., San Augustine County, 13 thousand reported
BRISCOE "G" — gas, ST. Mary Land & Exploration Co., Webb County, 13 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 13 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 12 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 12 thousand reported
SAN AMBROSIA B — gas, ST. Mary Land & Exploration Co., Webb County, 11 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 11 thousand reported
GATES 05S — gas, ST. Mary Land & Exploration Co., Webb County, 10 thousand reported
BRISCOE "E" — gas, ST. Mary Land & Exploration Co., Webb County, 9 thousand reported
UNIVERSITY BECKY B — gas, ST. Mary Land & Exploration Co., Andrews County, 9 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.