| HEADINGTON ENERGY | — | INDIVIDUAL | 24 | $83.9M |
| JOHN G AND MARIE S KENEDY MEMORIAL FDN | — | INDIVIDUAL | 9 | $11.1M |
| EOG RESOURCES MIN ACCTS | — | INDIVIDUAL | 19 | $10.1M |
| KENEDY JOHN G AND MARIE STELLA | — | INDIVIDUAL | 6 | $7.9M |
| HUGHES DAN A | — | INDIVIDUAL | 3 | $7.2M |
| SARITA ENERGY RESOURCES | HOUSTON, TX | INDIVIDUAL | 3 | $6.1M |
| KENEDY JOHN G JR CHARITABLE | — | INDIVIDUAL | 8 | $5.8M |
| ABACO OPERATING | SAN ANTONIO, TX | INDIVIDUAL | 6 | $5.1M |
| BLACKBUCK PETROLEUM | — | INDIVIDUAL | 8 | $4.7M |
| HILCORP ENERGY | HOUSTON, TX | ENTITY | 5 | $4.0M |
| KING RANCH MINERALS | — | INDIVIDUAL | 59 | $3.6M |
| BESCO OPERATING | — | INDIVIDUAL | 3 | $3.5M |
| CATHOLIC DIOCESE OF CORPUS CHRISTI | — | ENTITY | 6 | $2.8M |
| MERIT ENERGY | DALLAS, TX | INDIVIDUAL | 11 | $2.2M |
| EAST ALICE GKK | — | INDIVIDUAL | 17 | $1.9M |
| PINKSTON LICA EAST | — | INDIVIDUAL | 17 | $1.9M |
| EAST MICHAEL | — | INDIVIDUAL | 17 | $1.5M |
| WAGNER OIL | — | INDIVIDUAL | 1 | $1.1M |
| SULLIVAN MINERALS | — | INDIVIDUAL | 12 | $961K |
| EXXONMOBIL MIN ACCTS | — | INDIVIDUAL | 7 | $794K |
| GROVES HELEN K REV U A DTD 2 19 91 | — | INDIVIDUAL | 7 | $596K |
| SABINE ROYALTY | — | INDIVIDUAL | 5 | $572K |
| KLEBERG ROBERT J JR AND HELEN C FDN 1977 M | — | INDIVIDUAL | 25 | $554K |
| CATHOLIC DIOCESE OF CORPUS CRISTI | — | ENTITY | 3 | $461K |
| EAST KATHRYN IRENE | — | INDIVIDUAL | 17 | $439K |
| COMMISSIONER GENERAL LAND OFFICE | — | INDIVIDUAL | 12 | $399K |
| ALEXANDER HENRIETTA K | — | INDIVIDUAL | 74 | $391K |
| SUGDEN RICHARD GREER 1977 MIN DISTR 1 | — | INDIVIDUAL | 26 | $383K |
| EOG RESOURCES | HOUSTON, TX | INDIVIDUAL | 10 | $366K |
| CAESAR KLEBERG FOUNDATION | — | INDIVIDUAL | 10 | $319K |
| HKG 1981 GRANDCHILDRENS | — | INDIVIDUAL | 140 | $318K |
| PINKSTON JOHN JUSTUS 2002 | — | INDIVIDUAL | 5 | $303K |
| GROVES HELEN K REV U A DATED 2 19 91 | — | INDIVIDUAL | 18 | $283K |
| ALEXANDER HELEN C | SAN ANTONIO, TX | INDIVIDUAL | 44 | $265K |
| MOBIL PRODUCING TX AND NM | — | INDIVIDUAL | 1 | $253K |
| YARBOROUGH LINDA B 1967 | — | INDIVIDUAL | 29 | $251K |
| JUSTIN 67 | — | INDIVIDUAL | 28 | $251K |
| CLEM ELIZABETH SULLIVAN | — | INDIVIDUAL | 11 | $225K |
| LARKIN JOHN A III | — | INDIVIDUAL | 31 | $221K |
| ART 6 | — | INDIVIDUAL | 134 | $220K |
| SMK KR 2012 | — | INDIVIDUAL | 31 | $181K |
| FORGASON KLEBERG | — | INDIVIDUAL | 36 | $177K |
| MANDALAY KLEBERG | — | INDIVIDUAL | 36 | $177K |
| LOS PRIMOS MINERALS | — | INDIVIDUAL | 32 | $174K |
| EAST JOHN M 2002 A | — | INDIVIDUAL | 5 | $164K |
| MARIPOSA MINERALS | — | INDIVIDUAL | 11 | $158K |
| FORGASON CAROLINE A | — | INDIVIDUAL | 16 | $157K |
| MATZDOROTHYA | — | INDIVIDUAL | 16 | $156K |
| ALEXANDER JOHN DEAVER JR | — | INDIVIDUAL | 14 | $153K |
| MEYER ALICE KLEBERG | — | INDIVIDUAL | 60 | $152K |
| ESTILL FOUNDATION | — | INDIVIDUAL | 29 | $149K |
| ARMSTRONG CHARLES M 1977 MIN DIST | — | INDIVIDUAL | 25 | $149K |
| BORDEN JOYCE R MGT | — | INDIVIDUAL | 2 | $148K |
| HAMILTON EMORY A | — | INDIVIDUAL | 18 | $142K |
| STORIE MARY KING ESTILL FEAREY | — | INDIVIDUAL | 27 | $138K |
| KLEBERG ROBERT J JR AND HELEN FOUNDATION | — | INDIVIDUAL | 9 | $138K |
| HUNT OIL | — | INDIVIDUAL | 5 | $137K |
| ARMSTRONG STEWART LARKIN 1977 MIN DIST | — | INDIVIDUAL | 25 | $131K |
| JONES CAROLYN REVOCABLE | — | INDIVIDUAL | 5 | $131K |
| EAST JOHN M 2002 B | — | INDIVIDUAL | 5 | $130K |
| JOHNSON GENTRY E | — | INDIVIDUAL | 26 | $128K |
| KLEBERG STEPHEN J AND JANELL | — | INDIVIDUAL | 29 | $127K |
| DOBSON JEAN LARKIN | — | INDIVIDUAL | 30 | $127K |
| KATRINAS 67 | — | INDIVIDUAL | 30 | $126K |
| ALEXANDER DOROTHY D | — | INDIVIDUAL | 33 | $126K |
| JAMES K 67 | — | INDIVIDUAL | 28 | $125K |
| ALEXANDER JOHN D JR | — | INDIVIDUAL | 30 | $123K |
| IZSO JAYCOB | SCAPPOOSE, OR | INDIVIDUAL | 1 | $122K |
| J D ALEXANDER MINERAL | — | INDIVIDUAL | 28 | $113K |
| SHELTON ROBERT R 1967 | — | INDIVIDUAL | 81 | $113K |
| SSK MANAGEMENT | — | INDIVIDUAL | 29 | $110K |
| FORGASON CAROLINE A 1977 MINERAL DIST | — | INDIVIDUAL | 27 | $110K |
| CLEMENT LESLIE | — | INDIVIDUAL | 30 | $109K |
| MATZ DOROTHY ALEXANDER 1977 MIN DISTR | — | INDIVIDUAL | 26 | $109K |
| AMERICAN NATIONAL INSURANCE | — | INDIVIDUAL | 20 | $107K |
| ALEXANDER HELEN CAMPBELL 1977 MIN DIST | — | INDIVIDUAL | 25 | $107K |
| URBAN FUND III | — | INDIVIDUAL | 5 | $104K |
| HANSON ERIK G | — | INDIVIDUAL | 11 | $102K |
| LARKIN PETER A JR 1977 MIN DIST | — | INDIVIDUAL | 25 | $99K |
| OSHUN LIMITED | — | INDIVIDUAL | 32 | $97K |
| ALCOR INVESTMENTS | — | INDIVIDUAL | 57 | $97K |
| DIX ELEANOR CLEMENS | — | INDIVIDUAL | 11 | $96K |
| IPH MINERALS | — | INDIVIDUAL | 30 | $94K |
| DOBSON JEAN LARKIN REVOCABLE | — | INDIVIDUAL | 27 | $93K |
| JOHNSON CECILIA LEWIS 1970 | — | INDIVIDUAL | 8 | $92K |
| CUTLER LOUISE LARKIN REV | — | INDIVIDUAL | 20 | $87K |
| EAST THOMAS A 2002 B | — | INDIVIDUAL | 5 | $86K |
| DEWBRE PETROLEUM | — | INDIVIDUAL | 3 | $84K |
| GROVES HELEN K REV DTD 2 19 91 | — | INDIVIDUAL | 6 | $83K |
| KILLAM AND HURD | — | INDIVIDUAL | 2 | $82K |
| RISKEN PATRICK A RESIDUARY | — | INDIVIDUAL | 2 | $82K |
| RISKEN WILLIAM M | — | INDIVIDUAL | 2 | $82K |
| HAMILTON EMORY ALEXANDER CHILDRENS 2009 | — | INDIVIDUAL | 27 | $82K |
| CARRINGTON ALICE K CLEMENT 1977 MIN DIST | — | INDIVIDUAL | 24 | $81K |
| BARTER CLARENCE E | — | INDIVIDUAL | 10 | $81K |
| STEEN IDA CLEMENT 1977 MIN DIST | — | INDIVIDUAL | 25 | $80K |
| EAST THOMAS A 2002 A | — | INDIVIDUAL | 5 | $77K |
| KASTELY AMY | — | INDIVIDUAL | 31 | $76K |
| FM STEWART OIL AND GAS | — | INDIVIDUAL | 3 | $74K |
| DOWNMAN CYNTHIA | — | INDIVIDUAL | 5 | $73K |
