| WILDFIRE ENERGY OPERATING | — | INDIVIDUAL | 128 | $184.7M |
| AETHON ENERGY OPERATING | DALLAS, TX | INDIVIDUAL | 8 | $134.4M |
| COMSTOCK OIL AND GAS | — | INDIVIDUAL | 90 | $77.0M |
| MAGNOLIA OIL AND GAS OPERATING | — | INDIVIDUAL | 18 | $34.7M |
| DIVERSIFIED PRODUCTION | KEITHVILLE, TX | INDIVIDUAL | 328 | $31.6M |
| JOHNSON RANCH LAND AND CATTLE | — | INDIVIDUAL | 5 | $12.4M |
| HILCORP ENERGY | HOUSTON, TX | ENTITY | 444 | $12.3M |
| NORTHFIELD ENTERPRISES | BRYAN, TX | INDIVIDUAL | 22 | $5.2M |
| BBL OPERATING | COLLEYVILLE, TX | INDIVIDUAL | 13 | $4.2M |
| SHELBY BOSWELL OPERATOR | WICHITA FALLS, TX | INDIVIDUAL | 1 | $4.2M |
| MAPFCB13 NET | OKLAHOMA CITY, OK | INDIVIDUAL | 173 | $3.7M |
| EAGLE OIL AND GAS | WICHITA FALLS, TX | INDIVIDUAL | 34 | $3.4M |
| 2003 MCCULLOUGH FAMILY PTNSHIP | — | INDIVIDUAL | 13 | $3.2M |
| FORBIN INVESTMENTS N V A CURACAO | COLLEGE STATION, TX | INDIVIDUAL | 20 | $2.3M |
| LEGENDS EXPLORATION | HOUSTON, TX | INDIVIDUAL | 71 | $2.2M |
| ROBERTS ROD C | PLANO, TX | INDIVIDUAL | 14 | $2.2M |
| HTC INGRAM INVESTMENTS | FRANKLIN, TX | INDIVIDUAL | 35 | $2.1M |
| UNION PACIFIC RAILROAD | — | INDIVIDUAL | 53 | $2.0M |
| ENGMAN MARTHA SUE | — | INDIVIDUAL | 1 | $1.9M |
| WILLIAMS MINERALS | AUSTIN, TX | INDIVIDUAL | 2 | $1.7M |
| COTROPIA ROYALTIES | CYPRESS, TX | INDIVIDUAL | 19 | $1.7M |
| CIRCLE X LAND AND CATTLE | BRYAN, TX | INDIVIDUAL | 24 | $1.6M |
| MORELLO BEATRICE JOYCE COTROPIA | — | INDIVIDUAL | 19 | $1.4M |
| MCCULLOUGH H H FAMILY | — | INDIVIDUAL | 2 | $1.3M |
| NEYLAND WADE L AND JENNIFER | — | INDIVIDUAL | 10 | $1.3M |
| BLACK STONE MINERALS | — | INDIVIDUAL | 17 | $1.2M |
| FPJ LAND | — | INDIVIDUAL | 45 | $1.2M |
| KUTZSCHBACH GEORGE F | HOUSTON, TX | INDIVIDUAL | 10 | $1.2M |
| FOYT BARBARA COLLIER | — | INDIVIDUAL | 17 | $1.1M |
| SAN SABA ROYALTY | — | INDIVIDUAL | 6 | $1.1M |
| BECKENDORFF FLOYD GLENN | — | INDIVIDUAL | 4 | $1.0M |
| EXEMPT STATE OF TEXAS | — | GOVERNMENT | 58 | $1.0M |
| RICHARDS ANSETH PAGE | LA JOLLA, CA | INDIVIDUAL | 14 | $956K |
| FARRELL MARGARET PENN | FORT WORTH, TX | INDIVIDUAL | 14 | $955K |
| WILEY ONAH PENN | BENBROOK, TX | INDIVIDUAL | 14 | $955K |
| OSBORNE JOHN S JR | — | INDIVIDUAL | 3 | $932K |
| WILLIAMS OIL | — | INDIVIDUAL | 5 | $904K |
| SPILLERS DANNY M AND KATIE S LIV | — | INDIVIDUAL | 2 | $903K |
| CML EXPLORATION | SNYDER, TX | INDIVIDUAL | 10 | $863K |
| CIRCLE X CAMP COOLEY | — | INDIVIDUAL | 9 | $845K |
| AETHON III HV | — | INDIVIDUAL | 3 | $843K |
| HERD BOB L INVESTMENTS | — | INDIVIDUAL | 153 | $825K |
| DESERT V | — | INDIVIDUAL | 13 | $755K |
| MCMURREY JAMES ALLEN | DALLAS, TX | INDIVIDUAL | 7 | $744K |
| GIRARD LOUIS MCMURREY | HOUSTON, TX | INDIVIDUAL | 7 | $744K |
| WATTERS STEFANI MCMURREY | DALLAS, TX | INDIVIDUAL | 7 | $744K |
| FOSTER LISA REVOCABLE LVG | POTTSBORO, TX | INDIVIDUAL | 5 | $738K |
| RULAND CATTLE LC | — | INDIVIDUAL | 3 | $733K |
| FAZZINO LEE J | BRYAN, TX | INDIVIDUAL | 6 | $730K |
| LIME ROCK RESOURCES V A | — | INDIVIDUAL | 17 | $723K |
| CIRCLE X RESOURCES | — | INDIVIDUAL | 8 | $709K |
| FAIRWEATHER ENERGY HOLDINGS | — | INDIVIDUAL | 12 | $688K |
| WINKLER NINA ASTIN CHARITABLE | SAN ANTONIO, TX | INDIVIDUAL | 12 | $657K |
| HOLLEY OIL | CHAPPELL HILL, TX | INDIVIDUAL | 8 | $644K |
| HILCORP ENERGY I | HOUSTON, TX | ENTITY | 109 | $602K |
| RESERVE PETROLEUM | — | INDIVIDUAL | 78 | $598K |
| CRESCENT PASS ENERGY | HOUSTON, TX | INDIVIDUAL | 15 | $585K |
| PHILLIPS THOMAS E FAMILY | — | INDIVIDUAL | 12 | $583K |
| BROOKSIDE AFFILIATES | HOUSTON, TX | INDIVIDUAL | 6 | $581K |
| MULLENAX SANDRA J SSP | — | INDIVIDUAL | 2 | $560K |
| CIRCLE M RANCH | — | INDIVIDUAL | 31 | $555K |
| HURLEY | — | INDIVIDUAL | 2 | $555K |
| HURLEY JOHN T AND JO ANN | — | INDIVIDUAL | 2 | $555K |
| MAP2004 OK | — | INDIVIDUAL | 29 | $547K |
| HOWELL LINDA | — | INDIVIDUAL | 1 | $546K |
| 2007 MCBETH | — | INDIVIDUAL | 40 | $532K |
| CAMP CREEK WATER | — | INDIVIDUAL | 6 | $523K |
| DERRICK BUDDY L | — | INDIVIDUAL | 1 | $496K |
| KADAV | RUSTON, LA | INDIVIDUAL | 2 | $480K |
| PINZON CEBRENA LEE | PLANO, TX | INDIVIDUAL | 1 | $473K |
| KILLOUGH ROGER III AND BRENDA S | — | INDIVIDUAL | 2 | $466K |
| KYLE RANCH | — | INDIVIDUAL | 2 | $465K |
| IRON OAK MINERALS | MIDLAND, TX | INDIVIDUAL | 3 | $462K |
| HUDSON WELLBORN R III AND PAULA | — | INDIVIDUAL | 3 | $460K |
| HANSON AGGREGATES WEST | IRVING, TX | INDIVIDUAL | 4 | $456K |
| CAPPS CURTIS | BRYAN, TX | INDIVIDUAL | 7 | $454K |
| U BAR RESOURCES | HOUSTON, TX | INDIVIDUAL | 6 | $446K |
| RED HARLAN ROYALTIES | DALLAS, TX | INDIVIDUAL | 4 | $438K |
| CAPPS JUDY | — | INDIVIDUAL | 4 | $432K |
| LEHIGH HANSON MATERIALS SOUTH | — | INDIVIDUAL | 5 | $418K |
| CINCO H FAMILY HOLDINGS | BOERNE, TX | ENTITY | 13 | $417K |
| RYAN SANDRA C | HEARNE, TX | INDIVIDUAL | 48 | $413K |
| SHIELDS JUDY | — | INDIVIDUAL | 3 | $411K |
| FOYT JOAN LIFE | — | INDIVIDUAL | 11 | $409K |
| CUDE PLACE | — | INDIVIDUAL | 8 | $407K |
| FREEHOLD ROYALTIES USA | — | INDIVIDUAL | 6 | $402K |
| ASTIN NINA HEARD CHARITABLE | SAN ANTONIO, TX | INDIVIDUAL | 7 | $398K |
| MAHNKEN BRUCE | — | INDIVIDUAL | 3 | $385K |
| MUSE | WEDOWEE, AL | INDIVIDUAL | 14 | $384K |
| GUIDO | SAN ANTONIO, TX | INDIVIDUAL | 11 | $378K |
| REISTINO GATHAN | HEARNE, TX | INDIVIDUAL | 20 | $376K |
| MUSE ANGELINE PEACOCK | — | INDIVIDUAL | 16 | $376K |
| DTB INVESTMENTS | BANDERA, TX | INDIVIDUAL | 13 | $375K |
| MONTAIGNE MINERALS | DALLAS, TX | INDIVIDUAL | 10 | $363K |
| KELLOGG | — | INDIVIDUAL | 2 | $352K |
| NIGLIAZZO MARC ANTHONY | — | INDIVIDUAL | 11 | $351K |
| SULLIVAN TERRY A | HOUSTON, TX | INDIVIDUAL | 15 | $344K |
| RYAN JANE ROFFINO | — | INDIVIDUAL | 14 | $342K |
| SCHILHAB MARY FRANCIS | KERENS, TX | INDIVIDUAL | 2 | $332K |
| TEXAS OSAGE ROYALTY POOL | SAN ANTONIO, TX | INDIVIDUAL | 5 | $330K |
