Atascosa County oil and gas leases
All 52 Atascosa County leases with a production page on Extrxct, ranked by oil-equivalent volume (6 MCF = 1 BBL) in the 12 months to Jul 2026. Each links to its 36-month production history.
| # | Lease | RRC lease | Operator | Field | Oil (BBL) | Gas (MCF) |
|---|---|---|---|---|---|---|
| 1 | MIDDLE MCCOWEN | 15638 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 3,408,305 | 2,528,022 |
| 2 | WITHERSPOON | 21912 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 1,127,992 | 622,108 |
| 3 | MOONLIGHT | 17892 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 522,109 | 289,159 |
| 4 | W.T. HURT UNIT | 19939 | XTO ENERGY INC. | EAGLEVILLE (EAGLE FORD-1) | 369,219 | 597,683 |
| 5 | MCS FOUNDATION UNIT | 21791 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 384,325 | 437,213 |
| 6 | EMMA TARTT | 16032 | XTO ENERGY INC. | EAGLEVILLE (EAGLE FORD-1) | 353,741 | 524,244 |
| 7 | EAST HOSPITAL | 20948 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 380,605 | 305,334 |
| 8 | SOUTH LAKE | 21742 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 380,231 | 226,657 |
| 9 | BOWMAN WEST | 17472 | JAVELIN ENERGY PARTNERS MGMT LLC | EAGLEVILLE (EAGLE FORD-1) | 292,655 | 569,418 |
| 10 | THOMAS J RUSK A | 21821 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 220,995 | 167,204 |
| 11 | BOWMAN EAST | 16726 | JAVELIN ENERGY PARTNERS MGMT LLC | EAGLEVILLE (EAGLE FORD-1) | 223,509 | 96,221 |
| 12 | THOMAS J RUSK C | 21822 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 209,940 | 157,319 |
| 13 | GORDON TRUST | 15893 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 208,374 | 156,511 |
| 14 | PEARCE | 17633 | VALENCE OPERATING COMPANY | EAGLEVILLE (EAGLE FORD-1) | 219,272 | 85,161 |
| 15 | HIERHOLZER RETZLOFF-MCMAHON SA1 | 21771 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 174,826 | 296,030 |
| 16 | THOMAS J RUSK B | 21825 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 201,142 | 135,079 |
| 17 | GRIFFIN-KRUEGER SA4 | 21866 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 182,123 | 202,012 |
| 18 | THOMAS J RUSK D | 21820 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 187,040 | 154,674 |
| 19 | R MAY A-MAY GIRLS CHAPMAN SA2 | 21798 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 168,926 | 245,299 |
| 20 | HIERHOLZER RETZLOFF-MCMAHON SA3 | 21723 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 164,866 | 262,157 |
| 21 | GUAJILLO EAST | 17741 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 171,228 | 203,505 |
| 22 | R MAY A-SCHROEDER CHAPMAN SA1 | 21797 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 157,727 | 239,565 |
| 23 | HIERHOLZER RETZLOFF-MCMAHON SA2 | 21772 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 149,595 | 260,310 |
| 24 | EDMUND TOM 02 A | 21881 | CRESCENT ENERGY OPERATING, LLC | EAGLEVILLE (EAGLE FORD-1) | 166,909 | 91,018 |
| 25 | QUAIL | 16592 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 157,009 | 125,619 |
| 26 | GRIFFIN-KRUEGER SA3 | 21872 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 144,957 | 160,885 |
| 27 | SAM HOUSTON D | 21905 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 153,660 | 100,752 |
| 28 | GRIFFIN-KRUEGER SA2 | 21865 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 142,034 | 158,695 |
| 29 | ARMSTRONG HORIZONTAL UNIT | 18812 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 156,756 | 65,460 |
| 30 | MCS FOUNDATION-TOM FAMILY USW A | 21800 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 136,890 | 157,674 |
| 31 | JUSTIN TOM 01 B | 21880 | CRESCENT ENERGY OPERATING, LLC | EAGLEVILLE (EAGLE FORD-1) | 141,992 | 97,178 |
| 32 | MICHAEL WHEELER UNIT | 17502 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 140,662 | 88,248 |
| 33 | BOWMAN EAST 347 | 21792 | JAVELIN ENERGY PARTNERS MGMT LLC | EAGLEVILLE (EAGLE FORD-1) | 144,235 | 55,017 |
| 34 | COUNTISS | 15787 | INEOS USA OIL & GAS LLC | EAGLEVILLE (EAGLE FORD-1) | 133,759 | 116,540 |
| 35 | O'CONNELL A | 18360 | VERDUN OIL & GAS LLC | EAGLEVILLE (EAGLE FORD-1) | 129,480 | 138,091 |
| 36 | TOM-SMITH UNIT C | 20500 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 128,774 | 118,919 |
| 37 | R. MAY A | 16012 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 127,442 | 118,384 |
| 38 | 74 RANCH UNIT S3 | 20608 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 123,861 | 134,740 |
| 39 | EDMUND TOM 02 | 15751 | CRESCENT ENERGY OPERATING, LLC | EAGLEVILLE (EAGLE FORD-1) | 135,734 | 61,656 |
| 40 | STEWART GIESE HENKE SA4 | 21658 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 107,173 | 146,251 |
| 41 | 74 RANCH UNIT S2 | 20617 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 118,899 | 65,683 |
| 42 | 74 RANCH E | 21737 | MARATHON OIL EF LLC | EAGLEVILLE (EAGLE FORD-1) | 113,805 | 79,223 |
| 43 | SLICE AW | 21894 | TRAILBLAZER ENERGY RESOURCES,LLC | EAGLEVILLE (EAGLE FORD-1) | 117,018 | 48,222 |
| 44 | SOUTH WITHERSPOON | 21741 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 111,014 | 38,409 |
| 45 | ROAN G | 21873 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 109,123 | 46,884 |
| 46 | FRUIT BASKET D | 21870 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 104,214 | 61,358 |
| 47 | BOWMAN EAST 346 | 21779 | JAVELIN ENERGY PARTNERS MGMT LLC | EAGLEVILLE (EAGLE FORD-1) | 109,052 | 32,128 |
| 48 | FRUIT BASKET A | 21858 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 103,099 | 59,171 |
| 49 | CUELLAR | 17015 | EOG RESOURCES, INC. | EAGLEVILLE (EAGLE FORD-1) | 101,199 | 67,613 |
| 50 | BOWMAN EAST 348 | 21793 | JAVELIN ENERGY PARTNERS MGMT LLC | EAGLEVILLE (EAGLE FORD-1) | 104,209 | 36,871 |
| 51 | FREE RIDE AW | 21893 | TRAILBLAZER ENERGY RESOURCES,LLC | EAGLEVILLE (EAGLE FORD-1) | 102,692 | 40,579 |
| 52 | LONE STAR EAST UNIT | 21522 | TEXAS AMERICAN RESOURCES COMPANY | EAGLEVILLE (EAGLE FORD-1) | 100,041 | 30,767 |
Volumes are lease totals as reported to RRC; a lease that spans county lines is listed in each county it reports in. Leases below our page threshold (100,000 BBL of liquids or 1,000,000 MCF of gas in 12 months) are in the RRC Production Data Query. Back to Atascosa County.
Source: Texas Railroad Commission (data sets, Production Data Query). Data date: RRC Production Data Query dump, extract dated Sep 18, 2026; production through Jul 2026. Jun 2026 and Jul 2026 are provisional: operators file late and amend, so these months usually rise in later releases. Oil = crude oil + condensate (BBL); gas = gas-well gas + casinghead gas (MCF), as reported to RRC. Methodology.