| 653243Amendment | Jan 24, 2008 | Jan 24, 2008 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #6A | 2,000 | 48732685 |
| 648558 | Nov 1, 2007 | Nov 1, 2007 | Johnson & Ernst Operating Co. | Wichita | McCarty #22 | 2,000 | 48544310 |
| 645426 | Sep 5, 2007 | Sep 5, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DN #8 | 2,000 | 48732668 |
| 645425 | Sep 5, 2007 | Sep 5, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DQ #9 | 2,000 | 48732667 |
| 644883 | Aug 24, 2007 | Aug 24, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #5A | 2,000 | 48732666 |
| 644883Amendment | Aug 24, 2007 | Aug 24, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #5A | 2,000 | 48732666 |
| 644393 | Aug 16, 2007 | Aug 16, 2007 | Johnson & Ernst Operating Co. | Knox | Zeissel #1 | 6,200 | 27532206 |
| 637949 | May 24, 2007 | May 24, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #4A | 2,000 | 48732656 |
| 637949Amendment | May 24, 2007 | May 24, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #4A | 2,000 | 48732656 |
| 638854 | May 18, 2007 | May 18, 2007 | Johnson & Ernst Operating Co. | Wichita | Waggoner CP #18A | 2,000 | 48544241 |
| 638770 | May 17, 2007 | May 17, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DQ #8 | 2,000 | 48732655 |
| 634690 | Mar 22, 2007 | Mar 22, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #3A | 2,000 | 48732648 |
| 634690Amendment | Mar 22, 2007 | Mar 22, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #3A | 2,000 | 48732648 |
| 632411 | Feb 10, 2007 | Feb 10, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DN #7 | 2,700 | 48732640 |
| 631619 | Feb 1, 2007 | Feb 1, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner Ranch Batt #4 #294 | 3,000 | 48732635 |
| 631570 | Jan 30, 2007 | Jan 30, 2007 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DQ #7 | 2,000 | 48732634 |
| 627943 | Oct 30, 2006 | Oct 30, 2006 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #2A | 2,000 | 48732625 |
| 625939 | Sep 20, 2006 | Sep 20, 2006 | Johnson & Ernst Operating Co. | Wilbarger | Rcmsu #1 #37 | 2,500 | 48732621 |
| 625767 | Sep 20, 2006 | Sep 20, 2006 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DN #6 | 2,000 | 48732618 |
| 625137 | Sep 1, 2006 | Sep 1, 2006 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DQ #6 | 2,000 | 48732617 |
| 624874 | Aug 25, 2006 | Aug 25, 2006 | Johnson & Ernst Operating Co. | Jones | French #1 | 3,000 | 25334878 |
| 620228 | Jun 5, 2006 | Jun 5, 2006 | Johnson & Ernst Operating Co. | Wilbarger | Tharp #7 | 2,000 | 48732601 |
| 620226 | Jun 5, 2006 | Jun 5, 2006 | Johnson & Ernst Operating Co. | Wilbarger | Cambron B #11 | 2,000 | 48732602 |
| 620224 | Jun 5, 2006 | Jun 5, 2006 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #1A | 2,000 | 48732600 |
| 620224Amendment | Jun 5, 2006 | Jun 5, 2006 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #1A | 2,000 | 48732600 |
| 619660 | May 26, 2006 | May 26, 2006 | Johnson & Ernst Operating Co. | Wichita | Waggoner Holly #18 | 4,000 | 48544108 |
| 615564 | Mar 15, 2006 | Mar 15, 2006 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DQ #5 | 2,000 | 48732581 |
| 615557 | Mar 15, 2006 | Mar 15, 2006 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DN #5 | 2,000 | 48732580 |
| 610414 | Dec 7, 2005 | Dec 7, 2005 | Johnson & Ernst Operating Co. | Wichita | Nance /Deep/ #193 | 4,300 | 48544052 |
| 607857 | Oct 18, 2005 | Oct 18, 2005 | Johnson & Ernst Operating Co. | Wichita | Waggoner CP #17A | 2,000 | 48544045 |
| 604341 | Aug 3, 2005 | Aug 3, 2005 | Johnson & Ernst Operating Co. | Wilbarger | Rcmsu I #36 | 2,500 | 48732538 |
| 604152 | Aug 1, 2005 | Aug 1, 2005 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DQ #4 | 2,000 | 48732537 |
| 603356 | Jul 22, 2005 | Jul 22, 2005 | Johnson & Ernst Operating Co. | Archer | Schroeder #2 | 4,000 | 00941491 |
| 603509 | Jul 19, 2005 | Jul 19, 2005 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DN #4 | 2,000 | 48732536 |
| 600448 | May 11, 2005 | May 11, 2005 | Johnson & Ernst Operating Co. | Archer | Schroeder #1 | 4,000 | 00941478 |
| 557378 | Feb 8, 2005 | Feb 8, 2005 | Johnson & Ernst Operating Co. | Wilbarger | Rcmsu I #35 | 2,500 | 48732511 |
| 557244 | Feb 8, 2005 | Feb 8, 2005 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DQ #3 | 2,000 | 48732507 |
| 557156 | Feb 7, 2005 | Feb 7, 2005 | Johnson & Ernst Operating Co. | Wichita | Nance #135 | 2,000 | 48584931 |
| 554691 | Dec 14, 2004 | Dec 14, 2004 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DN #3 | 2,000 | 48732501 |
| 551867 | Oct 5, 2004 | Oct 5, 2004 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DQ #2 | 2,500 | 48732488 |
| 547102 | Jun 22, 2004 | Jun 22, 2004 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DQ #1 | 2,500 | 48732478 |
| 547101 | Jun 22, 2004 | Jun 22, 2004 | Johnson & Ernst Operating Co. | Wilbarger | Cambron B #10 | 2,000 | 48732479 |
| 546385 | Jun 4, 2004 | Jun 4, 2004 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DN #2 | 2,000 | 48732477 |
| 545688 | May 17, 2004 | May 17, 2004 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner Ranch #292 | 2,550 | 48732476 |
| 543271 | Mar 19, 2004 | Mar 19, 2004 | Johnson & Ernst Operating Co. | Wilbarger | Tharp #6 | 2,000 | 48732473 |
| 543272 | Mar 17, 2004 | Mar 17, 2004 | Johnson & Ernst Operating Co. | Wilbarger | Cambron B #9 | 2,000 | 48732472 |
| 538704 | Nov 20, 2003 | Nov 20, 2003 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner Ranch #291 | 2,550 | 48732464 |
| 538684 | Nov 20, 2003 | Nov 20, 2003 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner DP #1 | 2,000 | 48732465 |
| 533306 | Jun 27, 2003 | Jun 27, 2003 | Johnson & Ernst Operating Co. | Lavaca | Roberson #2 | 3,500 | 28533027 |
| 531536 | May 20, 2003 | May 20, 2003 | Johnson & Ernst Operating Co. | Hamilton | Stifflemire Unit #1 | 4,100 | 19330260 |
| 529851 | Mar 25, 2003 | Mar 25, 2003 | Johnson & Ernst Operating Co. | Wichita | Waggoner CP #17A | 2,000 | 48543764 |
| 529815 | Mar 24, 2003 | Mar 24, 2003 | Johnson & Ernst Operating Co. | Wichita | Stone #9A | 2,000 | 48543763 |
| 523758 | Sep 24, 2002 | Sep 24, 2002 | Johnson & Ernst Operating Co. | Wichita | McCarty #21 | 2,000 | 48543743 |
| 521355 | Jun 27, 2002 | Jun 27, 2002 | Johnson & Ernst Operating Co. | Wichita | Stone A #20 | 954 | 48532043 |
| 520536 | Jun 3, 2002 | Jun 3, 2002 | Johnson & Ernst Operating Co. | Wilbarger | Rcdsu I #71 | 2,000 | 48732450 |
| 509178 | May 22, 2001 | May 22, 2001 | Johnson & Ernst Operating Co. | Wichita | Bridwell #3 | 2,000 | 48543623 |
| 505929 | Mar 5, 2001 | Mar 5, 2001 | Johnson & Ernst Operating Co. | Wichita | Kempner I #2 | 4,534 | 48540096 |
| 504758 | Feb 6, 2001 | Feb 6, 2001 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner Da #18 | 3,600 | 48732435 |
| 503400 | Dec 28, 2000 | Dec 28, 2000 | Johnson & Ernst Operating Co. | Wilbarger | Rcdsu I #70 | 2,000 | 48732434 |
| 502916 | Dec 14, 2000 | Dec 14, 2000 | Johnson & Ernst Operating Co. | Wichita | Stone #8A | 2,000 | 48543598 |
| 502915 | Dec 14, 2000 | Dec 14, 2000 | Johnson & Ernst Operating Co. | Wichita | Stone #7A | 2,000 | 48543597 |
| 501795 | Nov 13, 2000 | Nov 13, 2000 | Johnson & Ernst Operating Co. | Jackson | Lowrey #1 | 5,300 | 23933101 |
| 501795Amendment | Nov 13, 2000 | Nov 13, 2000 | Johnson & Ernst Operating Co. | Jackson | Lowrey #1 | 5,300 | 23933101 |
| 498534 | Sep 15, 2000 | Sep 15, 2000 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner Ranch Batt. #4 #290 | 2,700 | 48732418 |
| 498335 | Aug 16, 2000 | Aug 16, 2000 | Johnson & Ernst Operating Co. | Wichita | Waggoner CP #16A | 2,000 | 48543567 |
| 493928 | Apr 13, 2000 | Apr 13, 2000 | Johnson & Ernst Operating Co. | Wichita | Bridwell #1 | 2,000 | 48543489 |
| 491068 | Jan 24, 2000 | Jan 24, 2000 | Johnson & Ernst Operating Co. | Wichita | Stone #6 | 2,000 | 48543515 |
| 491066 | Jan 24, 2000 | Jan 24, 2000 | Johnson & Ernst Operating Co. | Wichita | Stone A #23 | 2,000 | 48543516 |
| 491067 | Jan 19, 2000 | Jan 19, 2000 | Johnson & Ernst Operating Co. | Wichita | Bridwell #2 | 2,000 | 48543517 |
| 490980 | Jan 19, 2000 | Jan 19, 2000 | Johnson & Ernst Operating Co. | Wichita | Stone #5 | 2,000 | 48543514 |
| 489181 | Nov 12, 1999 | Nov 12, 1999 | Johnson & Ernst Operating Co. | Wichita | Bridwell #1 | 2,000 | 48543489 |
| 489181Amendment | Nov 12, 1999 | Nov 12, 1999 | Johnson & Ernst Operating Co. | Wichita | Bridwell #1 | 2,000 | 48543489 |
| 488343 | Oct 12, 1999 | Oct 12, 1999 | Johnson & Ernst Operating Co. | Wichita | Stone #4 | 2,000 | 48543474 |
| 488017 | Oct 4, 1999 | Oct 4, 1999 | Johnson & Ernst Operating Co. | Wichita | Stone #2 | 1,972 | 48543444 |
| 487679 | Sep 29, 1999 | Sep 29, 1999 | Johnson & Ernst Operating Co. | Jackson | Strane Unit #2 | 2,800 | 23933038 |
| 486952 | Aug 31, 1999 | Aug 31, 1999 | Johnson & Ernst Operating Co. | Wichita | Stone #3 | 2,000 | 48543470 |
| 486952Amendment | Aug 31, 1999 | Aug 31, 1999 | Johnson & Ernst Operating Co. | Wichita | Stone #3 | 2,000 | 48543470 |
| 482115 | Jan 22, 1999 | Jan 22, 1999 | Johnson & Ernst Operating Co. | Jackson | Strane-English #1 | 5,290 | 23932971 |
| 481077 | Nov 25, 1998 | Nov 25, 1998 | Johnson & Ernst Operating Co. | Wichita | Stone #2 | 2,000 | 48543444 |
| 475058 | Apr 14, 1998 | Apr 14, 1998 | Johnson & Ernst Operating Co. | Jackson | McNeil Unit #1 | 5,500 | 23932994 |
| 472507 | Jan 27, 1998 | Jan 27, 1998 | Johnson & Ernst Operating Co. | Jackson | Strane Unit #1 | 5,300 | 23932986 |
| 468912 | Oct 21, 1997 | Oct 21, 1997 | Johnson & Ernst Operating Co. | Jackson | Strane-English #1 | 5,500 | 23932971 |
| 466104 | Sep 12, 1997 | Sep 12, 1997 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner Da #47 | 2,600 | 48707601 |
| 465878 | Aug 28, 1997 | Aug 28, 1997 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner UN #7 | 2,000 | 48732370 |
| 462892 | Jun 4, 1997 | Jun 4, 1997 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner N #9 | 2,500 | 48781555 |
| 456009 | Dec 10, 1996 | Dec 10, 1996 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner UN #6 | 2,000 | 48732337 |
| 455420 | Nov 22, 1996 | Nov 22, 1996 | Johnson & Ernst Operating Co. | Wilbarger | Waggoner W #9F | 2,000 | 48732336 |
| 440565 | Oct 9, 1995 | Oct 9, 1995 | Johnson & Ernst Operating Co. | Wichita | Nance #192 | 1,500 | 48543162 |
| 432181 | Jan 26, 1995 | Jan 26, 1995 | Johnson & Ernst Operating Co. | Wichita | Nance #191 | 1,000 | 48543050 |
| 405452 | Dec 2, 1992 | Dec 2, 1992 | Johnson & Ernst Operating Co. | Wichita | Nance #190 | 700 | 48542726 |
| 401726 | Jul 30, 1992 | Jul 30, 1992 | Johnson & Ernst Operating Co. | Wichita | Nance #189 | 700 | 48542673 |