| MERIT ENERGY | DALLAS, TX | INDIVIDUAL | 149 | $37.1M |
| MORTIMER PRODUCTION | — | INDIVIDUAL | 12 | $8.2M |
| HILCORP ENERGY | HOUSTON, TX | ENTITY | 18 | $6.4M |
| HUGOTON OPERATING | — | INDIVIDUAL | 8 | $3.1M |
| TEXAS INDEPENDENT EXPLORATION | HOUSTON, TX | INDIVIDUAL | 8 | $2.5M |
| SMITH PRODUCTION | — | INDIVIDUAL | 18 | $2.3M |
| EFS FAMILY | — | INDIVIDUAL | 81 | $2.1M |
| COMMISSIONER GENERAL LAND OFFICE | — | INDIVIDUAL | 37 | $2.0M |
| KILLAM OIL | — | INDIVIDUAL | 17 | $1.4M |
| GUERRA MINERAL | — | INDIVIDUAL | 9 | $1.3M |
| STARR OPERATING | — | INDIVIDUAL | 4 | $1.3M |
| ROYAL PRODUCTION | — | INDIVIDUAL | 1 | $1.1M |
| DORCHESTER MINERALS | — | INDIVIDUAL | 19 | $1.1M |
| FLETCHER OPERATING | — | INDIVIDUAL | 7 | $839K |
| FAULCONER ENERGY | — | INDIVIDUAL | 4 | $727K |
| TREK RESOUCES | — | INDIVIDUAL | 3 | $667K |
| TSM ENERGY | — | INDIVIDUAL | 74 | $598K |
| TRAP ROCK OIL | — | INDIVIDUAL | 3 | $569K |
| SHEERIN MINERALS | — | INDIVIDUAL | 13 | $558K |
| MARIA C G MARTINEZ FAMILY | — | INDIVIDUAL | 8 | $529K |
| MARIA C G NARRO FAMILY | — | INDIVIDUAL | 8 | $529K |
| KERR SUSAN MOORMAN | — | INDIVIDUAL | 82 | $495K |
| WAGNER OIL | — | INDIVIDUAL | 9 | $450K |
| SAGA | — | INDIVIDUAL | 2 | $448K |
| LJM ENERGY | — | INDIVIDUAL | 57 | $411K |
| CROSS TIMBERS ENERGY | — | INDIVIDUAL | 4 | $378K |
| SLICK TOM | — | INDIVIDUAL | 65 | $367K |
| TEAL ROYALTIES | ADDISON, TX | INDIVIDUAL | 49 | $365K |
| R G POPE MINERALS | — | INDIVIDUAL | 5 | $355K |
| BLACK STONE MINERALS | — | INDIVIDUAL | 39 | $330K |
| HILCORP ENERGY I | HOUSTON, TX | ENTITY | 75 | $329K |
| LOONEY CULLEN R | — | INDIVIDUAL | 2 | $307K |
| HYDROCARBON OPERATING | — | INDIVIDUAL | 1 | $292K |
| COATES ENERGY INTERESTS | SAN ANTONIO, TX | INDIVIDUAL | 23 | $287K |
| SOUTHERN TEJAS ASSET GROUP | MCALLEN, TX | INDIVIDUAL | 2 | $286K |
| SAWYER MARIE LOUISE CRA | — | INDIVIDUAL | 1 | $276K |
| ESCUDO OIL AND GAS | — | INDIVIDUAL | 3 | $274K |
| DONALDSON BROWN ROYALTY | PITTSBURGH, PA | INDIVIDUAL | 6 | $269K |
| SMITH OIL | — | INDIVIDUAL | 12 | $244K |
| SLICK TOM MEMORIAL | ARLINGTON, TX | INDIVIDUAL | 154 | $241K |
| STARR COUNTY MINERALS | — | GOVERNMENT | 6 | $227K |
| DAHCO OPERATING | CORPUS CHRISTI, TX | INDIVIDUAL | 2 | $216K |
| TEXAS OSAGE ROYALTY POOL | SAN ANTONIO, TX | INDIVIDUAL | 8 | $209K |
| SEMMES THOMAS R | — | INDIVIDUAL | 9 | $208K |
| MINERALS MANAGEMENT SERVICE | — | INDIVIDUAL | 13 | $199K |
| MARIA M G GUERRA FAMILY | — | INDIVIDUAL | 4 | $183K |
| LJM CLASSIFIED LAND | — | INDIVIDUAL | 21 | $182K |
| GUTIERREZ JOSE IGNACIO FAMILY | — | INDIVIDUAL | 3 | $179K |
| KERR INVESTMENTS | — | INDIVIDUAL | 58 | $177K |
| TREVINO MARIA I G FAMILY | — | INDIVIDUAL | 2 | $175K |
| COATES ENERGY | — | INDIVIDUAL | 21 | $171K |
| TOBIN ENDOWMENT | — | INDIVIDUAL | 1 | $163K |
| TRIAD O AND G | — | INDIVIDUAL | 1 | $162K |
| GUERRA BROTHERS SUCCESSORS | — | INDIVIDUAL | 2 | $157K |
| KRONTHAL FAMILY FOUNDATION | — | INDIVIDUAL | 7 | $154K |
| FELICIANA | — | INDIVIDUAL | 2 | $153K |
| GARG OIL | HOUSTON, TX | INDIVIDUAL | 8 | $146K |
| QUIGLEY T M MINERAL | — | INDIVIDUAL | 7 | $145K |
| VCT OG | — | INDIVIDUAL | 10 | $142K |
| BLANCA FLORES INVESTMENTS | — | INDIVIDUAL | 4 | $142K |
| RICABY SANFORD B | — | INDIVIDUAL | 3 | $140K |
| STARRPRO MINERALS | — | INDIVIDUAL | 10 | $139K |
| D ETTE L FOWLKES | — | INDIVIDUAL | 1 | $138K |
| SEMMES FOUNDATION | — | INDIVIDUAL | 9 | $138K |
| SMITH DIANA MARIE RICHMOND | — | INDIVIDUAL | 3 | $137K |
| HILCORP ENERGY DEVELOPMENT | — | ENTITY | 2 | $126K |
| GARCIA MINERALS | — | INDIVIDUAL | 2 | $124K |
| SABINE ROYALTY | — | INDIVIDUAL | 16 | $120K |
| MCW ROYALTIES | — | INDIVIDUAL | 13 | $114K |
| HEINTZ WILLIAM A JR | — | INDIVIDUAL | 9 | $112K |
| TSM CLASSIFIED LAND | — | INDIVIDUAL | 7 | $109K |
| BOSTON TEXAS LAND | — | INDIVIDUAL | 8 | $107K |
| WARING JANICE W | — | INDIVIDUAL | 19 | $105K |
| SLICK TOM FOR MIND SCIENCE FDN | — | INDIVIDUAL | 86 | $103K |
| ORX RESOURCES | — | INDIVIDUAL | 3 | $100K |
| EXXONMOBIL MIN ACCTS | — | INDIVIDUAL | 3 | $98K |
| TOM SLICK FAMILY | — | INDIVIDUAL | 75 | $97K |
| DEWBRE PETROLEUM | — | INDIVIDUAL | 1 | $96K |
| CARDENAS RUBEN R | — | INDIVIDUAL | 1 | $93K |
| GONZALEZ FLORENCE H REV FAM | — | INDIVIDUAL | 1 | $93K |
| CASTELLANOS BARBARA E REV | — | INDIVIDUAL | 23 | $86K |
| PENA NICEFORO | — | INDIVIDUAL | 2 | $84K |
| DORCHESTER MINERALS OK | DALLAS, TX | INDIVIDUAL | 6 | $84K |
| MAP2004 OK | — | INDIVIDUAL | 11 | $84K |
| SLICK CHARLES URSCHEL | — | INDIVIDUAL | 66 | $83K |
| WESTLAKE PRODUCTING PROFIT | — | INDIVIDUAL | 3 | $79K |
| ORION NATURAL RESOURCES | — | INDIVIDUAL | 4 | $79K |
| SKOTTY ANNE ESPENAN | — | INDIVIDUAL | 9 | $79K |
| KAISER FRANCIS OIL | — | INDIVIDUAL | 1 | $78K |
| GONZALEZ LUCIO EDEN JR | — | INDIVIDUAL | 12 | $78K |
| BEEM PATTY SLICK | — | INDIVIDUAL | 70 | $78K |
| COW CREEK | — | INDIVIDUAL | 8 | $77K |
| VBN ASSETS | — | INDIVIDUAL | 65 | $76K |
| UGGS ENERGY | — | INDIVIDUAL | 10 | $76K |
| GUTIERREZ IGNACIA G | — | INDIVIDUAL | 6 | $75K |
| URBAN FUND III | — | INDIVIDUAL | 9 | $74K |
| GUERRA DAVID H | — | INDIVIDUAL | 5 | $73K |
| SFF ROYALTY | MIDLAND, TX | INDIVIDUAL | 8 | $72K |
| GONZALEZ LUIS EDUARDO | — | INDIVIDUAL | 10 | $71K |
| FAM REVOCABLE | — | INDIVIDUAL | 2 | $70K |
