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| Owner | Owner City | Lease | Operator | NRI | Type | County | Year |
|---|---|---|---|---|---|---|---|
| OJOS VENTURES LLC | Midland, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| STEWART VIVIAN IRREV TR | Wichita Falls, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| PEP LLC | Wichita Falls, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| CAMPISE MARY E | Dumfries, VA | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MCKEE SALLY JANE | Shepherdstown, WV | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MELTON LAURA JEANNE | Charles Town, WV | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| DODSON JOHN TYLER | Austin, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| SMYTH SANYA ADAIR | Valparaiso, FL | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| ADAIR TIMOTHY MICHAEL | Weatherford, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| KOEHN EARL | Houston, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN CLAIRE | Austin, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN JAMES TIPPETT | Austin, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| BOWER KATHERINE COWDEN | Dallas, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN JENNIFER | Austin, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN JAX BONNER | Austin, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN THOMAS CRAIG | Littleton, CO | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| CRAIGHEAD T C & CO | Ardmore, OK | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| GUNNIGLE CHARLOTTE E COWDEN | Atlanta, GA | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| BISSETT WAYNE A | Midland, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| STATES ROYALTY LTD | Abilene, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| KENNEDY MINERALS LTD | Midland, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN JAX M III | Carlsbad, NM | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN THOMAS BYSOR | Austin, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| KOCH DOUGLAS C | Houston, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON OTTIS W | San Gabriel, CA | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON PETER G | Powell Butte, OR | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON ROBERT C JR | Gig Harbor, WA | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON THEODORE U | Palo Alto, CA | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| UNICORN INVESTORS LTD | Houston, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| BOUDREAUX REECE | Midland, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| IRONWOOD EXPLORATION LLC | New Canaan, CT | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MCDONNOLD CRAIG | , | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| OJOS VENTURES LLC | Midland, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| ARROYO RESOURCES LTD | Midland, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| C O G OPERATING LLC | Midland, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN JAMES H/GWEN RHEA REVOCAB | San Antonio, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| SMITH ARMAND JR | Midland, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON TRUST | Los Angeles, CA | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| STEWART VIVIAN IRREV TR | Wichita Falls, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| PEP LLC | Wichita Falls, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| CAMPISE MARY E | Dumfries, VA | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MCKEE SALLY JANE | Shepherdstown, WV | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MELTON LAURA JEANNE | Charles Town, WV | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| DODSON JOHN TYLER | Austin, TX | COWDEN 11 | C O G OPERATING LLC | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |