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| Owner | Owner City | Lease | Operator | NRI | Type | County | Year |
|---|---|---|---|---|---|---|---|
| LOFTUS CASEY COWDEN | Zephyrhills, FL | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MCCANN ENERGY | Oklahoma City, OK | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON TRUST | Los Angeles, CA | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON THEODORE U | Palo Alto, CA | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON ROBERT C JR | Gig Harbor, WA | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON PETER G | Powell Butte, OR | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON OTIS W | San Gabriel, CA | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARSTON EDGAR J III | Houston, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MARKE EXPLORATION INC | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MCCANN JAMES KENDAL JR | Oklahoma City, OK | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| LOBO MINERALS LLC | Lubbock, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| LEWIS JOHN L | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| KOEHN EARL & SHARON 06 REV TR | Houston, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| KAUFFMAN BARBARA REVOCABLE TR | Jenks, OK | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| HYDE OIL & GAS CORP | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| HOLMES SALLY A 2011 REV TRUST | Oklahoma City, OK | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| HERRING OIL & GAS LLC | Broken Arrow, OK | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| RAY DAVID RANDOLPH JR | Millboro, VA | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| WILLIAMS OIL COMPANY | Midland, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| WESTFALL LS PRODUCTION LLC | Tulsa, OK | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| STARKEY JANET CAROL | Pikesville, MD | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| SAYRE OIL LLC | Oklahoma City, OK | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| ROCK ISLAND PRODUCTION CO LLC | San Francisco, CA | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| RAY LANA ECKARD | Hickory, NC | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| RAY GEORGE CALVERT JR | Conover, NC | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| RAY DEBORAH | Newton, NJ | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| HARRIS KITTY C | Fredericksburg, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| RATLIFF JOHN EDWARD | Pikesville, MD | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| RATLIFF DAVID EDWARD | Pikesville, MD | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| RAIN TREE ROYALTIES | Oklahoma City, OK | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| OVERALL LORENE SUE | San Marcos, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MCLAUGHLIN ANGELA DAWN | Windsor, CO | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MCKINLEY JOHN P | Aurora, CO | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| MCCANN MARGARET VIRGINIA II | Oklahoma City, OK | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| GARNER ALLISON A | Carlsbad, CA | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| ABILENE CHRISTIAN UNIVERSITY | Abilene, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| BALL JAYNAN EDWARDS LIFE EST | Bullard, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| BELMONT SISTERS LP | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| BIRDWELL ENERGY RESOURCES LLC | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| BLACKBEARD RESOURCES ROYALTY | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| BURLINGTON RESOURCES OIL & GAS | Houston, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| CATHOLIC DIOCESE OF FORT WORTH | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| CHEVRON USA (RI/OR) | Houston, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| CONOCOPHILLIPS -MIN-CONOCO | Houston, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| CORNER-FAIN OIL TRUST | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN CHARLES G JR | Dayton, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN GEORGE M TRUST | Austin, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN JERRY EUGENE III | Crane, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN PAUL B | Kerrville, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| FRENCH MARCIA FULLER | Midland, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| FIRST METHODIST CHURCH OF | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| EMEPSI | Spring, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| EDWARDS GREEN MINERALS LP | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| DM ROYALTIES LTD | Fort Worth, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| DD SOUTHERN HOLDINGS | West Richland, WA | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| CRAIGHEAD TC & COMPANY | Ardmore, OK | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN WILLIAM H JR | Kerrville, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN TIM R TRUST | Mountain Home, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN SAMMY J TRUST | San Marcos, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |
| COWDEN MARK T | Kerrville, TX | ROCK HOUSE 6 | WILLIAMS OIL COMPANY | XXXXXXXX | XXXXXXXX | XXXXXXXX | XXXXXXXX |