Oil and gas leases in Mustang Is-SB County

Mustang Is-SB County, Texas has 33 oil and gas leases with production on file at the Railroad Commission, all of them in Commission district 04. 4 of them are oil leases and 29 are gas leases. Between them they carry 33 wellbores. Reported volumes run from January 1993 to August 2026 and come to 1.2 million barrels of oil and 85.2 million Mcf of gas. 17 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 Mustang Is-SB County

How many oil and gas leases are in Mustang Is-SB County?: Mustang Is-SB County has 33 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has Mustang Is-SB County produced?: Leases in Mustang Is-SB County have reported 1,215,904 barrels of oil (bbl) and 85,177,330 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
Who are the biggest operators in Mustang Is-SB County?: Osprey Petroleum Company, Inc. operates 7 of the 33 producing leases in Mustang Is-SB County, more than any other operator on record with the Railroad Commission of Texas.
How many operators are active in Mustang Is-SB County?: 17 operators file production returns for leases in Mustang Is-SB County.
How much are mineral rights in Mustang Is-SB County worth?: There is no single figure: what a mineral or royalty interest in Mustang Is-SB County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 33 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.

Osprey Petroleum Company, Inc. — 7 leases
Mitchell Energy Corporation — 3 leases
Umc Petroleum Corporation — 3 leases
Ampac Oil & Gas, Inc. — 2 leases
Apache Corporation — 2 leases
Davis Gulf Coast, Inc. — 2 leases
Llog Exploration Offshore, Inc. — 2 leases
Lone Pine Production Assoc.,Inc. — 2 leases
Sabco Operating Company — 2 leases
Amoco Production Company — 1 lease
Llog Expl. Co. — 1 lease
Louisiana Land & Expl. Co., The — 1 lease
Magellan E&P Holdings, Inc. — 1 lease
Petrotex Engineering Company — 1 lease
Royal Production Company, Inc. — 1 lease
Sabco Operating Company, LLC — 1 lease
Sterling Energy, Inc. — 1 lease

Railroad Commission districts

District 04 — 33 leases

Leases

MUSTANG ISLAND BLOCK 883-S — gas, Llog Exploration Offshore, Inc., Mustang Is-SB County, 13.4 million reported
STATE TRACT 898-S — gas, Royal Production Company, Inc., Mustang Is-SB County, 12.7 million reported
SOUTH SPRINT STATE GAS UNIT # 2 — gas, Amoco Production Company, Mustang Is-SB County, 7.9 million reported
STATE TRACT 926-S — gas, Magellan E&P Holdings, Inc., Mustang Is-SB County, 7.3 million reported
STATE TRACT 883-S — gas, Louisiana Land & Expl. Co., The, Mustang Is-SB County, 6.7 million reported
STATE TRACT 904 GAS UNIT — gas, Osprey Petroleum Company, Inc., Mustang Is-SB County, 5.9 million reported
TSL 41338 — gas, Sabco Operating Company, Mustang Is-SB County, 4.6 million reported
TSL 41338 — gas, Sabco Operating Company, Mustang Is-SB County, 3.8 million reported
TEXAS STATE LEASE 41338 — gas, Lone Pine Production Assoc.,Inc., Mustang Is-SB County, 3.2 million reported
STATE TRACT 904 GAS UNIT — gas, Osprey Petroleum Company, Inc., Mustang Is-SB County, 2.8 million reported
STATE TRACT 926-S — gas, Mitchell Energy Corporation, Mustang Is-SB County, 2.6 million reported
STATE LEASE 904 GAS UNIT — gas, Umc Petroleum Corporation, Mustang Is-SB County, 2.4 million reported
MUSTANG ISLAND BLOCK 883-S — gas, Llog Exploration Offshore, Inc., Mustang Is-SB County, 2.1 million reported
STATE TRACT 904 GAS UNIT — gas, Umc Petroleum Corporation, Mustang Is-SB County, 1.9 million reported
TEXAS STATE LEASE 41338 — gas, Lone Pine Production Assoc.,Inc., Mustang Is-SB County, 1.7 million reported
TEXAS STATE LEASE 41338 — gas, Sabco Operating Company, LLC, Mustang Is-SB County, 1.1 million reported
STATE TRACT 904 GAS UNIT — gas, Osprey Petroleum Company, Inc., Mustang Is-SB County, 928 thousand reported
STATE TRACT 882-S — gas, Davis Gulf Coast, Inc., Mustang Is-SB County, 869 thousand reported
STATE TRACT 904 GAS UNIT — oil, Osprey Petroleum Company, Inc., Mustang Is-SB County, 795 thousand reported
STATE TRACT 882-S — gas, Davis Gulf Coast, Inc., Mustang Is-SB County, 793 thousand reported
STATE TRACT 926-S — gas, Mitchell Energy Corporation, Mustang Is-SB County, 602 thousand reported
MUSTANG ISLAND BLOCK 883-S — gas, Apache Corporation, Mustang Is-SB County, 550 thousand reported
S/L 41338 — gas, Ampac Oil & Gas, Inc., Mustang Is-SB County, 507 thousand reported
STATE TRACT 904 GAS UNIT — gas, Osprey Petroleum Company, Inc., Mustang Is-SB County, 418 thousand reported
STATE TRACT "901-S" — oil, Llog Expl. Co., Mustang Is-SB County, 234 thousand reported
STATE TRACT 904 GAS UNIT — gas, Sterling Energy, Inc., Mustang Is-SB County, 190 thousand reported
STATE TRACT 904 GAS UNIT — oil, Osprey Petroleum Company, Inc., Mustang Is-SB County, 154 thousand reported
S/L 41338 — gas, Ampac Oil & Gas, Inc., Mustang Is-SB County, 76 thousand reported
STATE TRACT 903-S — gas, Petrotex Engineering Company, Mustang Is-SB County, 40 thousand reported
ST TR 904 — oil, Osprey Petroleum Company, Inc., Mustang Is-SB County, 32 thousand reported
S. T. 773-L SW/4 — gas, Umc Petroleum Corporation, Mustang Is-SB County, 13 thousand reported
MUSTANG ISLAND BLOCK 883-S — gas, Apache Corporation, Mustang Is-SB County, 5 thousand reported
STATE TRACT 926-S — gas, Mitchell Energy Corporation, Mustang Is-SB County, 2 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.