Oil and gas leases in Robertson County

Robertson County, Texas has 1,428 oil and gas leases with production on file at the Railroad Commission. 336 of them are oil leases and 1,092 are gas leases. Between them they carry 1,519 wellbores. Reported volumes run from January 1993 to August 2026 and come to 59.0 million barrels of oil and 3.1 billion Mcf of gas. 95 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 Robertson County

How many oil and gas leases are in Robertson County?: Robertson County has 1,428 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has Robertson County produced?: Leases in Robertson County have reported 59,023,837 barrels of oil (bbl) and 3,086,393,140 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
Who are the biggest operators in Robertson County?: Xto Energy Inc. operates 452 of the 1,428 producing leases in Robertson County, more than any other operator on record with the Railroad Commission of Texas.
How many operators are active in Robertson County?: 95 operators file production returns for leases in Robertson County.
How much are mineral rights in Robertson County worth?: There is no single figure: what a mineral or royalty interest in Robertson County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 1,428 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.

Xto Energy Inc. — 452 leases
Encana Oil & Gas(USA) Inc. — 203 leases
Burlington Resources O & G Co LP — 83 leases
Williams, Clayton Energy, Inc. — 76 leases
Anadarko Petroleum Corporation — 62 leases
Union Pacific Resources Company — 53 leases
O'Benco, Inc. — 38 leases
Northfield Enterprises, Inc. — 29 leases
PG&E Resources Company — 28 leases
Brown, Tom Inc. — 22 leases
Coronado Energy E&P Company, LLC — 20 leases
Herd Producing Company, Inc. — 20 leases
Devon Energy Production Co, L.P. — 19 leases
Mitchell Energy Corporation — 18 leases
Marathon Oil Company — 15 leases
Matador Operating Company — 14 leases
BBL Operating Company LLC — 13 leases
Wildfire Energy Operating LLC — 13 leases
Aethon Energy Operating LLC — 12 leases
Red Willow Production, LLC — 12 leases
Arbol Resources, Inc. — 11 leases
Hawkwood Energy Operating, LLC — 11 leases
Jetta Operating Company, Inc. — 11 leases
Devon Energy Operating Co., L.P. — 10 leases
Patterson Petroleum, Inc. — 10 leases
Comstock Oil & Gas, LLC — 8 leases
Rockefeller Hughes (USA) LLC — 8 leases
Eagle Oil & Gas Co. — 7 leases
Mitchell Energy Company L.P. — 7 leases
WCS Oil And Gas Corporation — 7 leases
Sage Energy Company — 6 leases
Chesapeake Operating, L.L.C. — 5 leases
Edco Energy, Inc. — 5 leases
Peoples Energy Prod.-TX, L.P. — 5 leases
Allison/Hobbs Inc. — 4 leases
Anadarko E&P Onshore LLC — 4 leases
Broughton Operating Corp. — 4 leases
Chesapeake Operating, Inc. — 4 leases
Enserch Exploration, Inc — 4 leases
Gastar Exploration Texas, LP — 4 leases
J-W Operating Co. — 4 leases
Tanos Exploration II, LLC — 4 leases
American Energy Partners, Inc. — 3 leases
Anadarko E&P Company LP — 3 leases
Enduring Resources, LLC — 3 leases
King Operating Corporation — 3 leases
LRR Pecos Valley, LLC — 3 leases
Mexia Gas Company, Inc. — 3 leases
Pioneer Natural Res. USA, Inc. — 3 leases
Wildhorse Resources MNGT Co, LLC — 3 leases
Zackson Resources, Inc. — 3 leases
Cross Timbers Operating Company — 2 leases
Darnell Engineering Corp. — 2 leases
Edf Trading Resources, LLC — 2 leases
Exploration Techniques, Inc. — 2 leases
Greer Operating — 2 leases
Halcon Operating Co., Inc. — 2 leases
Laredo Energy Operating, LLC — 2 leases
Northfield Enterprises — 2 leases
Santa Fe Energy Resources, Inc. — 2 leases

Railroad Commission districts

District 05 — 1,161 leases
District 03 — 260 leases
District 01 — 7 leases

Leases — page 1 of 8

JAMES MCDONALD UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 73.3 million reported
CAMP COOLEY — gas, Broughton Operating Corp., Robertson County, 52.1 million reported
T-BAR-X/H. COLE GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 50.6 million reported
BOSWELL — gas, Chesapeake Operating, Inc., Robertson County, 49.1 million reported
FAZZINO, LEE UNIT — gas, Williams, Clayton Energy, Inc., Robertson County, 38.3 million reported
RILEY TRUST — gas, Marathon Oil Company, Robertson County, 35.1 million reported
T-BAR-X/SMITH GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 33.2 million reported
T-BAR-X/SORRELS GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 32.5 million reported
T-BAR-X/REAGAN GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 32.5 million reported
LAXSON — gas, Encana Oil & Gas(USA) Inc., Robertson County, 31.8 million reported
EMBRA UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 29.9 million reported
BONNIE ANN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 27.7 million reported
CURRIE — gas, Aethon Energy Operating LLC, Robertson County, 26.7 million reported
T-BAR-X/MARTIN — gas, Burlington Resources O & G Co LP, Robertson County, 26.2 million reported
BROUNKOWSKI — gas, Marathon Oil Company, Robertson County, 26.1 million reported
S. MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 23.6 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 23.3 million reported
T-BAR-X/TULLOUS — gas, Burlington Resources O & G Co LP, Robertson County, 23.3 million reported
KODA — gas, Aethon Energy Operating LLC, Robertson County, 22.1 million reported
T-BAR-X/CARLETON GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 21.8 million reported
T-BAR-X/MARTIN — gas, Burlington Resources O & G Co LP, Robertson County, 21.6 million reported
LANDERS — gas, Encana Oil & Gas(USA) Inc., Robertson County, 20.9 million reported
CIRCLE M ALLOC — gas, Comstock Oil & Gas, LLC, Robertson County, 20.6 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 20.5 million reported
CHARLENE — gas, Encana Oil & Gas(USA) Inc., Robertson County, 20.5 million reported
S. MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 20.4 million reported
RILEY TRUST — gas, Marathon Oil Company, Robertson County, 19.7 million reported
RIVER RANCH GAS UNIT — gas, Aethon Energy Operating LLC, Robertson County, 19.5 million reported
CHARLENE — gas, Encana Oil & Gas(USA) Inc., Robertson County, 19.3 million reported
TXU 9 GAS UNIT — gas, O'Benco, Inc., Robertson County, 19.2 million reported
T-BAR-X/SORRELS — gas, Tanos Exploration II, LLC, Robertson County, 19.1 million reported
GOLF LAKE — gas, Aethon Energy Operating LLC, Robertson County, 18.4 million reported
DEVON FEE 5 GAS UNIT — gas, O'Benco, Inc., Robertson County, 18.3 million reported
MCCULLOUGH INGRAM A — gas, Comstock Oil & Gas, LLC, Robertson County, 17.4 million reported
JOHNSON RANCH — gas, Aethon Energy Operating LLC, Robertson County, 17.1 million reported
DOROTHY ALLEN UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 17.0 million reported
TXU 8 — gas, O'Benco, Inc., Robertson County, 16.9 million reported
LILY HOPPESS UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 16.5 million reported
T-BAR-X/SULLIVAN GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 16.2 million reported
T-BAR-X/REAGAN GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 15.9 million reported
TXU 7 GAS UNIT — gas, O'Benco, Inc., Robertson County, 15.7 million reported
FAZZINO, LEE UNIT — gas, Williams, Clayton Energy, Inc., Robertson County, 15.4 million reported
T-BAR-X/READ — gas, Burlington Resources O & G Co LP, Robertson County, 15.4 million reported
LAXSON — gas, Encana Oil & Gas(USA) Inc., Robertson County, 15.2 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 14.9 million reported
T-BAR-X/SORRELS GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 14.8 million reported
INGRAM MARTIN A — gas, Comstock Oil & Gas, LLC, Robertson County, 14.8 million reported
REID, KAREN — gas, Red Willow Production, LLC, Robertson County, 14.1 million reported
SOUTHWORTH — gas, Encana Oil & Gas(USA) Inc., Robertson County, 14.0 million reported
STEELE GAS UNIT — gas, Xto Energy Inc., Robertson County, 14.0 million reported
LAXSON — gas, Encana Oil & Gas(USA) Inc., Robertson County, 13.7 million reported
FAZZINO, J.C. UNIT — gas, Williams, Clayton Energy, Inc., Robertson County, 13.5 million reported
COULTER HOPPESS UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 13.4 million reported
KIMBERLY BRUNETTE — gas, Encana Oil & Gas(USA) Inc., Robertson County, 13.1 million reported
SIMPSON, LEWIS — gas, Encana Oil & Gas(USA) Inc., Robertson County, 13.1 million reported
MORGAN, TRAVIS — gas, Encana Oil & Gas(USA) Inc., Robertson County, 13.0 million reported
CAMPBELL EO B — gas, Comstock Oil & Gas, LLC, Robertson County, 13.0 million reported
BEAR CREEK — gas, Red Willow Production, LLC, Robertson County, 12.7 million reported
LILY HOPPESS UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 12.6 million reported
BR/TURNER — gas, Burlington Resources O & G Co LP, Robertson County, 12.5 million reported
BR/STEGALL — gas, Burlington Resources O & G Co LP, Robertson County, 12.4 million reported
ADAMS-STATE UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 12.3 million reported
REDDEN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 12.2 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 11.9 million reported
T-BAR-X/SORRELS GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 11.8 million reported
MARTIN, MICHAEL UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 11.7 million reported
COTROPIA GAS UNIT — gas, Williams, Clayton Energy, Inc., Robertson County, 11.7 million reported
CAZEY BLACK A — gas, Comstock Oil & Gas, LLC, Robertson County, 11.5 million reported
DEVON FEE 5 GAS UNIT — gas, O'Benco, Inc., Robertson County, 11.5 million reported
MCCULLOUGH "B" — gas, Encana Oil & Gas(USA) Inc., Robertson County, 11.3 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 11.2 million reported
T-BAR-X/GAAS GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 11.1 million reported
HANCOCK GAS UNIT — gas, Xto Energy Inc., Robertson County, 11.0 million reported
RUSSELL UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 10.9 million reported
HANCOCK GAS UNIT — gas, Xto Energy Inc., Robertson County, 10.7 million reported
T-BAR-X/CARLETON GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 10.7 million reported
ADAMS-STATE UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 10.6 million reported
RAND-PAULSON RILEY TRUST — gas, Broughton Operating Corp., Robertson County, 10.4 million reported
HANCOCK GAS UNIT — gas, Xto Energy Inc., Robertson County, 10.4 million reported
CAZEY MS — gas, Comstock Oil & Gas, LLC, Robertson County, 10.0 million reported
RONALD CORN UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 9.8 million reported
SIMPSON, LEWIS — gas, Encana Oil & Gas(USA) Inc., Robertson County, 9.6 million reported
BEAR CREEK — gas, Red Willow Production, LLC, Robertson County, 9.3 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 9.1 million reported
DODDS, R. L., JR. "B" — gas, Encana Oil & Gas(USA) Inc., Robertson County, 9.1 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 8.8 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 8.0 million reported
LAXSON — gas, Encana Oil & Gas(USA) Inc., Robertson County, 8.0 million reported
REDDEN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 8.0 million reported
MARTIN, MICHAEL UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 8.0 million reported
CIRCLE M. RANCH-HOYT GAS UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 7.9 million reported
BR/MARGUERITE — gas, Burlington Resources O & G Co LP, Robertson County, 7.6 million reported
CORN, LOUISE UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 7.6 million reported
MITCHELL I — gas, PG&E Resources Company, Robertson County, 7.5 million reported
BR/STEGALL — gas, Burlington Resources O & G Co LP, Robertson County, 7.4 million reported
MARTIN, K. — gas, Encana Oil & Gas(USA) Inc., Robertson County, 7.2 million reported
VARISCO ESTATE UNIT — gas, Williams, Clayton Energy, Inc., Robertson County, 7.1 million reported
BR 2-14 RANCH — gas, Burlington Resources O & G Co LP, Robertson County, 7.1 million reported
CAZEY UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 7.1 million reported
CORN, LOUISE UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 7.0 million reported
MEADORS UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 7.0 million reported
CAZEY UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 6.7 million reported
BR PETTY — gas, Burlington Resources O & G Co LP, Robertson County, 6.6 million reported
DODDS, R. L. JR. — gas, Encana Oil & Gas(USA) Inc., Robertson County, 6.6 million reported
REDDEN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 6.5 million reported
WILLIAMS — gas, Burlington Resources O & G Co LP, Robertson County, 6.3 million reported
ADAMS-STATE UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 6.3 million reported
SHERROD — gas, Marathon Oil Company, Robertson County, 6.0 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 5.9 million reported
T-BAR-X/H. COLE GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 5.7 million reported
T-BAR-X/SULLIVAN GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 5.7 million reported
BR/DOOLEY GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 5.7 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 5.5 million reported
MARTIN, MICHAEL UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 5.5 million reported
YOUNG GAS UNIT — gas, Xto Energy Inc., Robertson County, 5.4 million reported
T-BAR-X/BOTTS GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 5.4 million reported
HANHART UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 5.4 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 5.2 million reported
S. MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 5.2 million reported
REAGAN, CECIL — gas, Broughton Operating Corp., Robertson County, 5.0 million reported
RUSSELL UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.9 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.9 million reported
SUBLETT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.9 million reported
T-BAR-X/REAGAN GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 4.9 million reported
BR\STEGALL — gas, Burlington Resources O & G Co LP, Robertson County, 4.8 million reported
FAZZINO, J.C. UNIT — gas, Williams, Clayton Energy, Inc., Robertson County, 4.8 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.7 million reported
BR/BECKTOLD — gas, Burlington Resources O & G Co LP, Robertson County, 4.7 million reported
T-BAR-X/SAVELL GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 4.7 million reported
RUSSELL UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.5 million reported
MERRYMAN "A" — gas, Anadarko Petroleum Corporation, Robertson County, 4.5 million reported
FOSSIL JOHN PARKER GAS UNIT 2 — gas, Gastar Exploration Texas, LP, Robertson County, 4.5 million reported
ROLKE RANCH — gas, Red Willow Production, LLC, Robertson County, 4.5 million reported
REEVES GAS UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.5 million reported
GAAS GAS UNIT — gas, Xto Energy Inc., Robertson County, 4.4 million reported
BELL, BETTIE — gas, Sinclair Oil Corporation, Robertson County, 4.4 million reported
MCCULLOUGH, M. L. — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.4 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.3 million reported
MITCHELL I — gas, PG&E Resources Company, Robertson County, 4.3 million reported
HOYT GAS UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.3 million reported
T-BAR-X/SAVELL GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 4.3 million reported
MITCHELL I — gas, PG&E Resources Company, Robertson County, 4.1 million reported
DCR — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.1 million reported
CAMP — gas, Aethon Energy Operating LLC, Robertson County, 4.1 million reported
BEAL ESTATE — gas, PG&E Resources Company, Robertson County, 4.0 million reported
LAW UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.0 million reported
PEISKEE UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.0 million reported
MEADORS UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.0 million reported
T-BAR-X/READ — gas, Burlington Resources O & G Co LP, Robertson County, 4.0 million reported
MEADORS UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 4.0 million reported
TEMPLETON GAS UNIT — gas, Xto Energy Inc., Robertson County, 4.0 million reported
KNIGHT — gas, Burlington Resources O & G Co LP, Robertson County, 4.0 million reported
BARNETT, ELVIN UNIT — gas, Xto Energy Inc., Robertson County, 3.9 million reported
T-BAR-X/SAVELL GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 3.9 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.8 million reported
T-BAR-X/SAVELL GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 3.8 million reported
S. MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.7 million reported
MCGREW UNIT — gas, Williams, Clayton Energy, Inc., Robertson County, 3.7 million reported
MITCHELL UNIT III — gas, PG&E Resources Company, Robertson County, 3.5 million reported
T-BAR-X/RABE GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 3.5 million reported
JOHNSON, PAULINE UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.5 million reported
MITCHELL UNIT II — gas, PG&E Resources Company, Robertson County, 3.5 million reported
HOLMES A UNIT — gas, Aethon Energy Operating LLC, Robertson County, 3.5 million reported
T-BAR-X/METCALF GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 3.4 million reported
CARTER GAS UNIT NO. 1 — gas, Xto Energy Inc., Robertson County, 3.4 million reported
T-BAR-X/R&H 290 — gas, Burlington Resources O & G Co LP, Robertson County, 3.4 million reported
T-BAR-X/CARLETON GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 3.4 million reported
KNIGHT — gas, Burlington Resources O & G Co LP, Robertson County, 3.4 million reported
MANNING GAS UNIT — gas, Xto Energy Inc., Robertson County, 3.4 million reported
SOUTHWORTH — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.4 million reported
MITCHELL I — gas, Xto Energy Inc., Robertson County, 3.3 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.3 million reported
INGRAM, G. H. JR. "C" UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.3 million reported
GAAS GAS UNIT — gas, Xto Energy Inc., Robertson County, 3.3 million reported
MITCHELL I — gas, PG&E Resources Company, Robertson County, 3.3 million reported
MERRYMAN "A" — gas, Anadarko Petroleum Corporation, Robertson County, 3.3 million reported
MCMURREY TRUST "A" UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.2 million reported
BR/MARGERUM — gas, Burlington Resources O & G Co LP, Robertson County, 3.2 million reported
FRIER, R.H. GAS UNIT II — gas, Xto Energy Inc., Robertson County, 3.2 million reported
MERRYMAN "A" — gas, Anadarko Petroleum Corporation, Robertson County, 3.2 million reported
DUNCAN GAS UNIT NO. 2 — gas, Xto Energy Inc., Robertson County, 3.2 million reported
FRIER, R. H. — gas, Mitchell Energy Company L.P., Robertson County, 3.2 million reported
LAW UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.2 million reported
ANTELOPE LAKE GAS UNIT — gas, Red Willow Production, LLC, Robertson County, 3.2 million reported
MCLEAN — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.1 million reported
JOHNSON, PAULINE UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.1 million reported
DODDS, R. L. JR. B — gas, Encana Oil & Gas(USA) Inc., Robertson County, 3.1 million reported
CAMP — gas, Aethon Energy Operating LLC, Robertson County, 3.1 million reported
REAGAN "C" — gas, Anadarko Petroleum Corporation, Robertson County, 3.0 million reported
MILSTEAD — gas, PG&E Resources Company, Robertson County, 3.0 million reported
BEAL ESTATE — gas, PG&E Resources Company, Robertson County, 3.0 million reported
T-BAR-X/R/ BREWER GAS UNIT — gas, Burlington Resources O & G Co LP, Robertson County, 3.0 million reported
LOREANT, CLIFFORD — gas, Mitchell Energy Corporation, Robertson County, 3.0 million reported
REAGAN "A" — gas, Anadarko Petroleum Corporation, Robertson County, 3.0 million reported
INGRAM, G. H. A-281 — gas, Broughton Operating Corp., Robertson County, 3.0 million reported
REAGAN "C" — gas, Anadarko Petroleum Corporation, Robertson County, 2.9 million reported
MITCHELL, J. H. I — gas, PG&E Resources Company, Robertson County, 2.9 million reported
BRUNETTE UNIT — gas, Encana Oil & Gas(USA) Inc., Robertson County, 2.9 million reported
BR\WALTS — gas, Burlington Resources O & G Co LP, Robertson County, 2.9 million reported
REAGAN "A" — gas, Anadarko Petroleum Corporation, Robertson County, 2.9 million 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.