| PO AND G OPERATING | ROCKWALL, TX | INDIVIDUAL | 46 | $58.9M |
| KINDER MORGAN TEJAS PIPELINE | HOUSTON, TX | INDIVIDUAL | 2 | $38.1M |
| HPL RESOURCES | DALLAS, TX | INDIVIDUAL | 3 | $16.3M |
| TREK RESOURCES | DALLAS, TX | INDIVIDUAL | 35 | $13.9M |
| TANDEM ENERGY | HOUSTON, TX | INDIVIDUAL | 14 | $9.5M |
| BALLARD EXPLORATION | — | INDIVIDUAL | 12 | $8.5M |
| GAITHER PETROLEUM | — | INDIVIDUAL | 7 | $8.2M |
| AMERICO ENERGY RESOURCES | HOUSTON, TX | INDIVIDUAL | 6 | $5.5M |
| CHEVRON U S A | — | INDIVIDUAL | 11 | $4.7M |
| STATE OF TEXAS | — | GOVERNMENT | 11 | $3.7M |
| WRD OPERATING | HOUSTON, TX | INDIVIDUAL | 4 | $3.4M |
| WEST WESLEY MINERALS | HOUSTON, TX | INDIVIDUAL | 7 | $3.0M |
| ETOCO | HOUSTON, TX | INDIVIDUAL | 5 | $2.2M |
| MORGAN ENTERPRISES | HOUSTON, TX | INDIVIDUAL | 1 | $1.7M |
| PETROTX OPERATING | KINGWOOD, TX | INDIVIDUAL | 8 | $1.5M |
| FAULCONER ENERGY | — | INDIVIDUAL | 2 | $1.5M |
| LLOYD MARGENE WEST | HOUSTON, TX | INDIVIDUAL | 7 | $1.4M |
| NORDSTRAND ENGINEERING | HOUSTON, TX | INDIVIDUAL | 3 | $1.1M |
| MEMORIAL HERMAN FOUNDATION | HOUSTON, TX | INDIVIDUAL | 2 | $1.1M |
| TORTUGA OPERATING | HOUSTON, TX | INDIVIDUAL | 41 | $890K |
| DAYLIGHT PETROLEUM | HOUSTON, TX | INDIVIDUAL | 9 | $789K |
| GALLOWAY LONE STAR | TOMBALL, TX | INDIVIDUAL | 7 | $767K |
| REDBIRD OILFIELD SERVICES | — | INDIVIDUAL | 8 | $733K |
| BECKWITH KATHLEEN M SURV | MORAGA, CA | INDIVIDUAL | 1 | $728K |
| BRAY FAMILY 2008 | TAHOE CITY, CA | INDIVIDUAL | 1 | $728K |
| EVOLUTION RESOURCES | HOUSTON, TX | INDIVIDUAL | 1 | $611K |
| WELCH ROBERT A FOUNDATION | — | INDIVIDUAL | 10 | $567K |
| SMITH ASHBEL LAND | HOUSTON, TX | INDIVIDUAL | 4 | $517K |
| VR4 MORIA | — | INDIVIDUAL | 10 | $475K |
| ETH ENTERPRISES | HARPER, TX | INDIVIDUAL | 3 | $474K |
| CONOCOPHILLIPS | — | INDIVIDUAL | 14 | $464K |
| BLAKE THOMAS W | HOUSTON, TX | INDIVIDUAL | 1 | $458K |
| SILVERBROOK OPERATING | — | INDIVIDUAL | 2 | $438K |
| BREILING BEAMER REV | OMAHA, NE | INDIVIDUAL | 1 | $437K |
| CMP VIVA | — | INDIVIDUAL | 1 | $437K |
| JCB O AND G | BEAUMONT, TX | INDIVIDUAL | 31 | $391K |
| HARRIGAN ROYALTIES | HOUSTON, TX | INDIVIDUAL | 31 | $391K |
| BRAY ALLEN GEORGE MARITAL | RENO, NV | INDIVIDUAL | 1 | $364K |
| WHITE ELLEN KAY HARRISON | BRENHAM, TX | INDIVIDUAL | 2 | $350K |
| INEOS AMERICAS | THEODORE, AL | INDIVIDUAL | 2 | $347K |
| WESTMAR MINERALS | HOUSTON, TX | INDIVIDUAL | 7 | $326K |
| HAMILL FOUNDATION THE | HOUSTON, TX | INDIVIDUAL | 5 | $323K |
| PENROC OIL | HOBBS, NM | INDIVIDUAL | 7 | $315K |
| FORT WORTH NATURAL GAS | ARLINGTON, TX | INDIVIDUAL | 5 | $297K |
| AK TEXAS VENTURE CAPITAL | HOUSTON, TX | INDIVIDUAL | 1 | $295K |
| MSE OPERATING | BEAVERTON, OR | INDIVIDUAL | 2 | $295K |
| WEST STEDMAN BETTY ANN | HOUSTON, TX | INDIVIDUAL | 7 | $287K |
| RIVERCREST ROYALTIES | — | INDIVIDUAL | 9 | $285K |
| BEAMER ALEXANDER R | COTTAGE GROVE, OR | INDIVIDUAL | 1 | $262K |
| BEAMER DTD 2 9 12 | BERKELEY, CA | INDIVIDUAL | 1 | $262K |
| RONALD L BEAMER REVOCABLE | BEAVERTON, OR | INDIVIDUAL | 1 | $262K |
| TAYLOR DEBORAH BEAMER | WALNUT CREEK, CA | INDIVIDUAL | 1 | $262K |
| PETROTX ENERGY | KINGWOOD, TX | INDIVIDUAL | 9 | $261K |
| DIXON LINDA ANNE REV | LAS VEGAS, NV | INDIVIDUAL | 2 | $260K |
| RAINS AILEEN DIXON | — | INDIVIDUAL | 4 | $260K |
| RIGGS CATHERINE DORSEY | DURHAM, NC | INDIVIDUAL | 2 | $250K |
| RIGGS GRACE INDIA | DUNEDIN, FL | INDIVIDUAL | 2 | $250K |
| RIGGS THOMAS FRANKLIN JR | EARLYSVILLE, VA | INDIVIDUAL | 2 | $250K |
| CENTURY REAL PROPERTY INVEST | AUSTIN, TX | INDIVIDUAL | 2 | $250K |
| RIGGS BRIAN DOWNEY SR | BELLEAIR, FL | INDIVIDUAL | 1 | $232K |
| ROPER CYNTHIA WALKER | HOUSTON, TX | INDIVIDUAL | 1 | $226K |
| PMCC AND H | THE WOODLANDS, TX | INDIVIDUAL | 5 | $223K |
| HOUSTON CHRISTIAN UNIVERSITY | HOUSTON, TX | INDIVIDUAL | 2 | $221K |
| STEVENSON MOLLIE TAYLOR SR | HOUSTON, TX | INDIVIDUAL | 1 | $219K |
| BREILING BRIAN JOSEPH | NEVADA CITY, CA | INDIVIDUAL | 1 | $218K |
| BREILING KATHRYN B TSTMRY | MORAGA, CA | INDIVIDUAL | 1 | $218K |
| BREILING KATHRYN B TSTMRY TRST | MORAGA, CA | INDIVIDUAL | 1 | $218K |
| BULLOCH MARGRETTE C BREILING | MORAGA, CA | INDIVIDUAL | 1 | $218K |
| METCALF JOAN B | MORAGA, CA | INDIVIDUAL | 2 | $214K |
| JOSEY OIL | — | INDIVIDUAL | 1 | $213K |
| STEDMAN WEST FOUNDATION | HOUSTON, TX | INDIVIDUAL | 2 | $200K |
| WEST ENDOWMENT THE | HOUSTON, TX | INDIVIDUAL | 2 | $200K |
| DIXON RESOURCES | — | INDIVIDUAL | 2 | $195K |
| KENNEDY MYRA BRAY | SAN TAN VALLEY, AZ | INDIVIDUAL | 1 | $182K |
| HANNOVER ESTATES | HOUSTON, TX | ESTATE | 2 | $175K |
| FIVE STAR ROYALTY | DENVER, CO | INDIVIDUAL | 2 | $169K |
| TEXAN LAND AND CATTLE II | — | INDIVIDUAL | 4 | $168K |
| BLAKEMORE MARGENE MGMT | SAN ANTONIO, TX | INDIVIDUAL | 7 | $163K |
| FORT WORTH ROYALTY | — | INDIVIDUAL | 11 | $159K |
| BUCKNER FOUNDATION | — | INDIVIDUAL | 7 | $158K |
| GROVES SUE BAIN | TULSA, OK | INDIVIDUAL | 14 | $156K |
| ROOSEVELT WARM SPRGS FDN | BOSTON, MA | INDIVIDUAL | 1 | $154K |
| ENCHANTED ROYALTY | BANDERA, TX | INDIVIDUAL | 1 | $152K |
| OXY USA | — | INDIVIDUAL | 6 | $151K |
| TERRA ASSETS | KATY, TX | INDIVIDUAL | 3 | $150K |
| HAECKEL ROBERTA L | HOUSTON, TX | INDIVIDUAL | 5 | $149K |
| SMART RITA MATHILDE | SAN ANTONIO, TX | INDIVIDUAL | 2 | $147K |
| RICE WILLIAM MARSH UNIVERSITY | HOUSTON, TX | INDIVIDUAL | 16 | $146K |
| ARO MINERALS | CARLSBAD, CA | INDIVIDUAL | 1 | $142K |
| ONE ELEVEN MINERAL PTNR | SAN ANTONIO, TX | INDIVIDUAL | 2 | $140K |
| TRANSEURO ENERGY | LEANDER, TX | INDIVIDUAL | 1 | $138K |
| SNEAD 2000 REV | TULSA, OK | INDIVIDUAL | 1 | $132K |
| PETRO RESOURCES | HOUSTON, TX | INDIVIDUAL | 3 | $130K |
| OKLATEX ENERGY | BEAUMONT, TX | INDIVIDUAL | 2 | $127K |
| DORCHESTER MINERALS | — | INDIVIDUAL | 7 | $127K |
| DUPRIEST J CURTIS | GEORGETOWN, TX | INDIVIDUAL | 1 | $126K |
| UNITED METHODIST CHURCH | ATLANTA, GA | INDIVIDUAL | 1 | $125K |
| KERR MCGEE OIL AND GAS ONSHORE | — | INDIVIDUAL | 3 | $123K |
| DUFRESNE NANCY LEONA | SAN ANTONIO, TX | INDIVIDUAL | 2 | $123K |
| TELEKI RUTH S | AUSTIN, TX | INDIVIDUAL | 2 | $121K |
