| 1 | I & GN R. R | Gregg County, TX | Oil & Gas Property | Jun 2016 |
| 2 | I & R WOLF | Stark County, OH | Oil & Gas Property | Dec 2017 |
| 3 | I B ALEXANDER | Jasper County, MS | Oil & Gas Property | Sep 2016 |
| 4 | I B BENDEL HEIRS | Lafayette Parish, LA | Oil & Gas Property | Aug 2018 |
| 5 | I D REEVES | Union Parish, LA | Gas Property | Mar 2018 |
| 6 | I G KENNON | Johnson County, TX | Gas Property | Feb 2014 |
| 7 | I H BAKER | Toole County, MT | Oil Property | Sep 2018 |
| 8 | I H BASS | Lamar County, MS | Oil & Gas Property | Oct 2018 |
| 9 | I H WISE | Bienville Parish, LA | Oil & Gas Property | Sep 2018 |
| 10 | I H YAKEY | Concordia Parish, LA | Oil & Gas Property | Jan 2003 |
| 11 | I HARVEY UNIT | Sullivan County, PA | Gas Property | Oct 2018 |
| 12 | I J MAJOR | Pointe Coupee Parish, LA | Oil & Gas Property | Jun 2007 |
| 13 | I L MAY | Lasalle Parish, LA | Oil & Gas Property | Sep 2018 |
| 14 | I L SMITH 80X | Armstrong County, PA | Oil & Gas Property | Dec 2017 |
| 15 | I L YOUNG | Caddo Parish, LA | Oil & Gas Property | Jul 2018 |
| 16 | I LEJEUNE | Acadia Parish, LA | Oil & Gas Property | May 1987 |
| 17 | I M C GATES | Union Parish, LA | Gas Property | May 2007 |
| 18 | I M RHODES | Indiana County, PA | Gas Property | Dec 2017 |
| 19 | I P FARMS | Brazoria County, TX | Gas Property | Sep 2012 |
| 20 | I PIERCE 591 | Greene County, PA | Gas Property | Oct 2018 |
| 21 | I R BLYTHE | Washington County, PA | Gas Property | Dec 2017 |
| 22 | I R BORDAGES | Calcasieu Parish, LA | Oil & Gas Property | Jan 2016 |
| 23 | I R T /IOWA REALTY TRUST/ | Pecos County, TX | Oil & Gas Property | Sep 2018 |
| 24 | I R T 29 | Pecos County, TX | Gas Property | Oct 2018 |
| 25 | I W YOUNGBLOOD | Webster Parish, LA | Oil & Gas Property | Jul 2018 |
| 26 | I WALLA | Liberty County, MT | Oil & Gas Property | Oct 2018 |
| 27 | I-20 JV | Tarrant County, TX | Gas Property | Oct 2018 |
| 28 | I-28H MCKITRICK | Harding County, SD | Oil & Gas Property | Oct 2018 |
| 29 | I. DIAS | Santa Barbara County, CA | Oil & Gas Property | Dec 2017 |
| 30 | I. F. WRAY | Stevens County, KS | Gas Property | Sep 2018 |
| 31 | I. H. ABERCROMBIE 1 | Covington County, MS | Oil & Gas Property | Oct 2018 |
| 32 | I. H. BASS ET AL | Lamar County, MS | Oil & Gas Property | Dec 2005 |
| 33 | I. M. WOODWARD, USL | Kern County, CA | Oil & Gas Property | Feb 2018 |
| 34 | I. P. FARMS 366 AC. GAS UNIT | Brazoria County, TX | Gas Property | Oct 2018 |
| 35 | I. R. MILLER | Kearny County, KS | Gas Property | Sep 2018 |
| 36 | I. R. T. -B | Pecos County, TX | Oil & Gas Property | Oct 2018 |
| 37 | I. R. T. REDMOND -B | Pecos County, TX | Oil & Gas Property | Mar 2018 |
| 38 | I. S. BROTHERS | Hamilton County, KS | Gas Property | Sep 2018 |
| 39 | I. THOMPSON TRUST | Montgomery County, KS | Gas Property | Sep 2018 |
| 40 | I.A. WALLACE | Liberty County, MT | Oil & Gas Property | Oct 2018 |
| 41 | I.A.B.UNIT | Coke County, TX | Oil & Gas Property | Oct 2018 |
| 42 | I.E. HADDOCK, ET AL GAS UNIT B | Hidalgo County, TX | Gas Property | Jun 2017 |
| 43 | I.F. COLEMAN | Caddo County, OK | Oil Property | May 1990 |
| 44 | I.L. MORRIS & MIKE ROSS | Harrison County, WV | Oil & Gas Property | Dec 2017 |
| 45 | I.O.C. 1 | Yolo County, CA | Gas Property | Dec 2017 |
| 46 | I.O.C. 2 | Yolo County, CA | Gas Property | Dec 2017 |
| 47 | I.O.C. 3 | Yolo County, CA | Gas Property | Dec 2017 |
| 48 | I.O.C. UNIT | Yolo County, CA | Gas Property | Dec 2017 |
| 49 | I.P. FARMS | Brazoria County, TX | Oil & Gas Property | Oct 2018 |
| 50 | I.P. FARMS | Brazoria County, TX | Oil & Gas Property | Oct 2018 |
| 51 | I.R.T. STATE | Pecos County, TX | Oil & Gas Property | Mar 2017 |
| 52 | I.V. MONTALVO | Starr County, TX | Oil & Gas Property | Oct 2018 |
| 53 | I.W YOUNG G V | Erath County, TX | Gas Property | Sep 2018 |
| 54 | IACOCCA | Oklahoma County, OK | Oil & Gas Property | May 2001 |
| 55 | IAMS | Ritchie County, WV | Oil & Gas Property | Dec 2017 |
| 56 | IAMS | Washington County, PA | Gas Property | Oct 2018 |
| 57 | IAN HOUGHTON 24-32H | Dunn County, ND | Oil & Gas Property | Nov 2018 |
| 58 | IAN QUICKSILVER 19-20-1H | McKenzie County, ND | Oil & Gas Property | Nov 2018 |
| 59 | IANTHA RUTLEDGE | Live Oak County, TX | Oil & Gas Property | Oct 2018 |
| 60 | IB 32 STATE | Eddy County, NM | Oil & Gas Property | Sep 2018 |
| 61 | IBBETSON | Labette County, KS | Gas Property | Sep 2018 |
| 62 | IBERLIN | Campbell County, WY | Oil & Gas Property | Oct 2018 |
| 63 | IBERLIN | Campbell County, WY | Oil & Gas Property | Oct 2018 |
| 64 | IBERLIN | Johnson County, WY | Gas Property | Oct 2018 |
| 65 | IBERLIN | Campbell County, WY | Gas Property | May 2015 |
| 66 | IBERLIN | Johnson County, WY | Gas Property | Oct 2018 |
| 67 | IBERLIN | Johnson County, WY | Gas Property | Sep 2017 |
| 68 | IBERLIN | Campbell County, WY | Oil & Gas Property | Oct 2018 |
| 69 | IBERLIN FEDERAL | Campbell County, WY | Gas Property | Aug 2009 |
| 70 | IBERLIN RANCH | Johnson County, WY | Gas Property | Oct 2018 |
| 71 | IBERLIN RANCH | Johnson County, WY | Gas Property | Oct 2018 |
| 72 | IBERLIN RANCH | Johnson County, WY | Gas Property | Oct 2018 |
| 73 | IBERLIN RANCH | Campbell County, WY | Oil & Gas Property | Oct 2018 |
| 74 | IBEX | Stephens County, TX | Oil & Gas Property | Sep 2018 |
| 75 | IBEX 10 B3NC FEDERAL COM | Lea County, NM | Oil & Gas Property | Sep 2018 |
| 76 | IBIS XU STATE | Chaves County, NM | Oil & Gas Property | Oct 2018 |
| 77 | IBISON | Le Flore County, OK | Gas Property | Oct 2018 |
| 78 | IBROM | Dewitt County, TX | Oil & Gas Property | Oct 2018 |
| 79 | IBROM A-H SISTERS B SA | Dewitt County, TX | Oil & Gas Property | Oct 2018 |
| 80 | IBSEN | Caddo County, OK | Gas Property | Oct 2018 |
| 81 | ICA CHEVRON | Loving County, TX | Oil & Gas Property | Sep 2018 |
| 82 | ICA UNIVERSITY 37 | Andrews County, TX | Oil & Gas Property | Oct 2018 |
| 83 | ICARUS 1-16H | Lincoln County, OK | Gas Property | Nov 2018 |
| 84 | ICCE | Harris County, TX | Oil Property | Jan 2017 |
| 85 | ICE DANCER 30 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Sep 2018 |
| 86 | ICE G E | Perry County, OH | Oil Property | Dec 2017 |
| 87 | ICEHOUSE 2 | Las Animas County, CO | Gas Property | Oct 2018 |
| 88 | ICEMAN | Howard County, TX | Oil & Gas Property | Oct 2018 |
| 89 | ICEMAN | Las Animas County, CO | Gas Property | Oct 2018 |
| 90 | ICEMAN BRA | Bradford County, PA | Gas Property | Oct 2018 |
| 91 | ICEMAN STATE | Weld County, CO | Oil & Gas Property | Nov 2018 |
| 92 | ICEMAN UNIT | Reeves County, TX | Oil & Gas Property | Oct 2018 |
| 93 | ICG NATURAL RESOURCES | Perry County, KY | Oil & Gas Property | Dec 2015 |
| 94 | ICHABOD 7 FEDERAL | Lea County, NM | Oil & Gas Property | Sep 2018 |
| 95 | ICI LEJ UNIT | Tarrant County, TX | Gas Property | Oct 2018 |
| 96 | ICKERT | Archer County, TX | Oil & Gas Property | Oct 2018 |
| 97 | ICKES | Campbell County, WY | Oil & Gas Property | Mar 2016 |
| 98 | IDA 5200 21-28B | McKenzie County, ND | Oil & Gas Property | Nov 2018 |
| 99 | IDA 6-12 | Coal County, OK | Gas Property | Oct 2018 |
| 100 | IDA ANDERSON | McPherson County, KS | Oil Property | Aug 2018 |