| OXY USA | — | INDIVIDUAL | 227 | $366.4M |
| SABINAL ENERGY OPERATING | SPRING, TX | INDIVIDUAL | 217 | $235.6M |
| OCCIDENTAL PERMIAN | HOUSTON, TX | INDIVIDUAL | 411 | $232.9M |
| OXY USA WTP | HOUSTON, TX | INDIVIDUAL | 158 | $146.0M |
| ROMAN CATHOLIC DIOCESE | AMARILLO, TX | INDIVIDUAL | 57 | $49.7M |
| CONTANGO RESOURCES | OKLAHOMA CITY, OK | INDIVIDUAL | 183 | $48.3M |
| EXXON MOBIL | — | INDIVIDUAL | 134 | $47.3M |
| PARALLEL PETROLEUM | MIDLAND, TX | INDIVIDUAL | 54 | $41.4M |
| XTO ENERGY | — | INDIVIDUAL | 126 | $32.8M |
| CITATION OIL AND GAS | HOUSTON, TX | INDIVIDUAL | 23 | $31.4M |
| GUNGOLL CARL E EXPLORATION L | — | INDIVIDUAL | 6 | $26.8M |
| TEXLAND PETROLEUM | FORT WORTH, TX | INDIVIDUAL | 20 | $25.9M |
| WHITE ROCK OIL AND GAS | — | INDIVIDUAL | 14 | $24.1M |
| JOINT RESOURCES | — | INDIVIDUAL | 18 | $22.1M |
| ATLAS OPERATING | HOUSTON, TX | INDIVIDUAL | 1 | $21.1M |
| LAGUNA PETROLEUM | — | INDIVIDUAL | 31 | $20.0M |
| HILCORP ENERGY | HOUSTON, TX | ENTITY | 44 | $15.8M |
| FASKEN OIL AND RANCH | MIDLAND, TX | INDIVIDUAL | 27 | $13.4M |
| CARTER AMON G FDN | FORT WORTH, TX | INDIVIDUAL | 45 | $12.8M |
| MANZANO | — | INDIVIDUAL | 5 | $12.0M |
| BAPTIST FOUNDATION OF TEXAS | — | INDIVIDUAL | 87 | $11.6M |
| CARR ROBERT NONA SCHOLARSHIP | — | INDIVIDUAL | 89 | $11.4M |
| DOSS M S FOUNDATION | — | INDIVIDUAL | 49 | $10.7M |
| RIVERHILL ENERGY | WELLBORN, TX | INDIVIDUAL | 74 | $10.4M |
| TRINITY UNIVERSITY | — | INDIVIDUAL | 99 | $10.1M |
| DORCHESTER MINERALS | — | INDIVIDUAL | 123 | $9.7M |
| BLOCK T PETROLEUM | TYLER, TX | INDIVIDUAL | 23 | $9.6M |
| SEABOARD OPERATING | MIDLAND, TX | INDIVIDUAL | 9 | $9.3M |
| SABINE ROYALTY | — | INDIVIDUAL | 172 | $8.1M |
| UNKNOWN | — | INDIVIDUAL | 54 | $7.9M |
| ZARVONA ENERGY | HOUSTON, TX | INDIVIDUAL | 15 | $6.6M |
| BLACK STONE MINERALS | — | INDIVIDUAL | 233 | $6.4M |
| HILCORP ENERGY I | HOUSTON, TX | ENTITY | 89 | $6.0M |
| DEVON ENERGY PRODUCTION | DALLAS, TX | INDIVIDUAL | 29 | $5.9M |
| TREE PLATEAU | — | INDIVIDUAL | 63 | $5.4M |
| JONES OIL ACCOUNT | — | INDIVIDUAL | 74 | $5.0M |
| EXTEX OPERATING | HOUSTON, TX | INDIVIDUAL | 22 | $5.0M |
| BASIN OIL AND GAS OPERATING | FORT WORTH, TX | INDIVIDUAL | 8 | $4.9M |
| MCCLURE OIL | MIDLAND, TX | INDIVIDUAL | 21 | $4.7M |
| CROSS TIMBERS ENERGY | — | INDIVIDUAL | 43 | $4.7M |
| SPENCE CHAPIN SERVICES TO | — | INDIVIDUAL | 60 | $4.3M |
| SOZO NATURAL RESOURCES | HOUSTON, TX | INDIVIDUAL | 5 | $4.1M |
| ROCK FISH OPERATING | MCKINNEY, TX | INDIVIDUAL | 10 | $3.9M |
| TALFORD RICHARD S SR | — | INDIVIDUAL | 52 | $3.8M |
| SCOUT ENERGY MANAGEMENT | DALLAS, TX | INDIVIDUAL | 3 | $3.8M |
| CLARK JOHN M | AUSTIN, TX | INDIVIDUAL | 7 | $3.8M |
| SCANLAN FOUNDATION | HOUSTON, TX | INDIVIDUAL | 10 | $3.7M |
| SYLER FAMILY | — | INDIVIDUAL | 1 | $3.5M |
| CHEVRON USA | — | INDIVIDUAL | 23 | $3.5M |
| CONOCOPHILLIPS | — | INDIVIDUAL | 69 | $3.5M |
| ANDREWS SELMA E CHARITABLE | DALLAS, TX | INDIVIDUAL | 90 | $3.2M |
| UNITEX OIL AND GAS | MIDLAND, TX | INDIVIDUAL | 18 | $3.0M |
| CAPTUREPOINT | ALLEN, TX | INDIVIDUAL | 5 | $3.0M |
| GRACE PETROLEUM OPERATING | LLANO, TX | INDIVIDUAL | 8 | $3.0M |
| PROVIDENCE MINERALS | DALLAS, TX | INDIVIDUAL | 32 | $2.8M |
| BCP RESOURCES | MIDLAND, TX | INDIVIDUAL | 1 | $2.6M |
| SHELL COMPANIES FDN | — | INDIVIDUAL | 12 | $2.5M |
| AMERICAN ASSURANCE 2000 | — | INDIVIDUAL | 44 | $2.5M |
| MAVERICK OPERATING | MIDLAND, TX | INDIVIDUAL | 12 | $2.5M |
| RAW OIL AND GAS | — | INDIVIDUAL | 2 | $2.4M |
| MOBIL PROD TEX AND NM | SPRING, TX | INDIVIDUAL | 33 | $2.3M |
| PETAL | — | INDIVIDUAL | 63 | $2.3M |
| GASKIN BAY | — | INDIVIDUAL | 63 | $2.3M |
| LINDSEY FAMILY INTERESTS | — | INDIVIDUAL | 48 | $2.3M |
| LINDSEY M C AND TOMMY FAMILY | WESTLAND, MI | INDIVIDUAL | 46 | $2.3M |
| SUNSHINE COTTAGE SCHOOL FOR | SAN ANTONIO, TX | GOVERNMENT | 102 | $2.2M |
| FLAT TOP OPERATING | MIDLAND, TX | INDIVIDUAL | 4 | $2.2M |
| SIERRA LIMA OIL AND GAS | ABILENE, TX | INDIVIDUAL | 2 | $2.2M |
| SURGE OPERATING | HOUSTON, TX | INDIVIDUAL | 4 | $2.1M |
| MARSHALL AND WINSTON | MIDLAND, TX | INDIVIDUAL | 131 | $2.1M |
| GAINES COUNTY MINERALS | — | GOVERNMENT | 8 | $2.1M |
| PERIMETER RESOURCE | MIDLAND, TX | INDIVIDUAL | 7 | $2.1M |
| DANFORTH FAMILY | — | INDIVIDUAL | 21 | $2.0M |
| CROSSTEX SERVICES | TUSCOLA, TX | INDIVIDUAL | 13 | $2.0M |
| SUMMIT PETROLEUM | MIDLAND, TX | INDIVIDUAL | 1 | $1.9M |
| WTG EXPLORATION | MIDLAND, TX | INDIVIDUAL | 8 | $1.9M |
| THE ALLAR | — | INDIVIDUAL | 88 | $1.8M |
| ANDREWS SELMA E FBO | — | INDIVIDUAL | 109 | $1.8M |
| V F PETROLEUM | MIDLAND, TX | INDIVIDUAL | 10 | $1.7M |
| SJMBF | — | INDIVIDUAL | 7 | $1.7M |
| CAMPBELL JOHN D HEIRS PRTNSHIP | — | ESTATE | 5 | $1.6M |
| PENNOCK ALBERT STANTON LIV | DALLAS, TX | INDIVIDUAL | 53 | $1.6M |
| PENNOCK JOHN GREGORY | HOUSTON, TX | INDIVIDUAL | 53 | $1.6M |
| SOUTHWEST ROYALTIES | MIDLAND, TX | INDIVIDUAL | 7 | $1.6M |
| WATUSI ENERGY | MIDLAND, TX | INDIVIDUAL | 3 | $1.5M |
| SEEKAMP MINERALS | — | INDIVIDUAL | 1 | $1.5M |
| ARES ENERGY | MIDLAND, TX | INDIVIDUAL | 21 | $1.5M |
| MABEE J E AND L E FOUNDATION | — | INDIVIDUAL | 93 | $1.5M |
| FREE REIN OPERATING | — | INDIVIDUAL | 1 | $1.5M |
| ROYALTY | HIALEAH, FL | INDIVIDUAL | 10 | $1.5M |
| GRANBERRY HOWARD BALDWIN | CEDAR PARK, TX | INDIVIDUAL | 4 | $1.5M |
| GRANBERRY THOMAS COLLIER | AUSTIN, TX | INDIVIDUAL | 4 | $1.5M |
| REMUDA OPERATING | MIDLAND, TX | INDIVIDUAL | 5 | $1.4M |
| TAYLOR NANCY B REV OIL | — | INDIVIDUAL | 56 | $1.4M |
| CRAIG | MIDLAND, TX | INDIVIDUAL | 138 | $1.4M |
| WINSTON | MINNETONKA, MN | INDIVIDUAL | 95 | $1.3M |
| EXEMPT STATE OF TEXAS | — | GOVERNMENT | 15 | $1.3M |
| THRESHER ENERGY | HOUSTON, TX | INDIVIDUAL | 5 | $1.3M |
| PERPETUAL SELMA ANDREWS | — | INDIVIDUAL | 23 | $1.3M |
| UNIVERSITY OF TEXAS PUF | AUSTIN, TX | INDIVIDUAL | 6 | $1.3M |
