OPERATORS · RRC 103921

Mountainside Energy Operating, L

WindowAll time 90 days 1 year 3 years 10 years

CountyHemphill 31 Wheeler 26 Hansford 1 Ochiltree 1

Type

59 PERMITS · PAGE 1 OF 2 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Jan 12, 2011	708237	Drill	Ochiltree	Swink 402 #1HH	9,000	Final completion	35732978	Acquired from EOG Resources, Inc.
May 15, 2007	638219	Drill	Hemphill	Hobart Ranch #1967	13,500	Final completion	21133900	Acquired from Cimarex Energy Co.
Sep 6, 2006	625235	Drill	Hemphill	Ross #1371	13,400	Spudded	21133704	Acquired from Cimarex Energy Co.
Sep 6, 2006	625235	Drill	Hemphill	Ross #1371	13,400	Final completion	21133704	Acquired from Cimarex Energy Co.
Mar 28, 2006	615041	Drill	Hemphill	Ross #1271	12,800	Final completion	21133532	Acquired from Cimarex Energy Co.
Mar 28, 2006	615040	Drill	Hemphill	Ross #1171	12,800	Final completion	21133531	Acquired from Cimarex Energy Co.
Jun 27, 2005	602572	Drill	Hemphill	Gulf-Mesa Sappington #5	13,000	Final completion	21133342	Acquired from Samson Lone Star LP
Oct 13, 2003	535429	Drill	Hemphill	Isaacs #7028	10,800	Final completion	21132813	Acquired from Samson Lone Star LP
Jan 13, 2003	527174	Field transfer	Hemphill	Ross, A. A. #9071	14,500	Final completion	21132431	Acquired from Chevron U. S. A. Inc.
Dec 10, 2002	526226	Drill	Hemphill	Isaacs #6208	10,800	—	21132672	Acquired from Samson Lone Star LP
Dec 10, 2002	526226	Drill	Hemphill	Isaacs #6208	10,800	Final completion	21132672	Acquired from Samson Lone Star LP
Aug 17, 2001	512729	Drill	Hemphill	Jarvis, Billy #3	12,200	Final completion	21132546	Acquired from Apache Corporation
Jun 2, 2000	495778	Drill	Hemphill	Ross, A. A. #9071	14,500	Final completion	21132431	Acquired from Chevron U. S. A. Inc.
Oct 5, 1999	481059	Drill	Hemphill	Isaacs 209 #9	10,800	Final completion	21132326	Acquired from Samson Lone Star LP
Aug 24, 1999	481058	Drill	Hemphill	Isaacs 210 #8	10,800	Final completion	21132325	Acquired from Samson Lone Star LP
Jul 7, 1999	485647	Drill	Hemphill	Campbell #502	10,800	Final completion	21132365	Acquired from Crescendo Resources, L.P.
Jul 7, 1999	485647	Drill	Hemphill	Campbell #502	10,800	—	21132365	Acquired from Chevron U. S. A. Inc.
Nov 20, 1998	481057	Drill	Hemphill	Isaacs 208 #4	10,800	—	21132324	Acquired from Samson Lone Star LP
Nov 20, 1998	481057	Drill	Hemphill	Isaacs 208 #4	10,800	Final completion	21132324	Acquired from Samson Lone Star LP
Apr 24, 1996	447423	Drill	Wheeler	Johnson, D. E. #30	3,250	Final completion	48331484	Acquired from Texaco E & P Inc.
Mar 12, 1996	445802	Drill	Wheeler	Johnson, D. E. #29	3,250	Final completion	48331482	Acquired from Texaco E & P Inc.
Oct 20, 1995	441079	Drill	Wheeler	Johnson, D. E. #28	3,250	Final completion	48331474	Acquired from Texaco E & P Inc.
Sep 19, 1995	439821	Drill	Wheeler	Keller, P. M. #30	3,250	Final completion	48331471	Acquired from Texaco E & P Inc.
May 9, 1995	435574	Drill	Wheeler	Keller, P.M. #29	3,250	Final completion	48331470	Acquired from Texaco E & P Inc.
Apr 4, 1995	433427	Drill	Wheeler	Keller, P. M. #28	3,250	—	48331469	Acquired from Texaco E & P Inc.
Apr 4, 1995	433427	Drill	Wheeler	Keller, P. M. #28	3,250	Final completion	48331469	Acquired from Texaco E & P Inc.
Jul 14, 1994	425854	Drill	Hemphill	Flowers #31	8,000	Final completion	21132081	Acquired from Chevron U. S. A. Inc.
Jun 30, 1994	425454	Drill	Hemphill	Isaacs #6210	8,000	Final completion	21132078	Acquired from Chevron U. S. A. Inc.
Jun 8, 1994	423271	Drill	Wheeler	Bush, W. B. #14	2,750	Unsuccessful workover	48331462	Acquired from Texaco E & P Inc.
Apr 7, 1994	421808	Drill	Wheeler	Keller, P. M. #27	2,750	Unsuccessful workover	48331458	Acquired from Texaco E & P Inc.
Feb 5, 1993	408638	Drill	Wheeler	Keller, P. M. #26	3,250	Final completion	48331442	Acquired from Texaco E & P Inc.
Sep 9, 1991	387309	Drill	Wheeler	Bush, W. B. #13	2,900	Final completion	48331432	Acquired from Texaco E & P Inc.
Jul 23, 1990	373994	Drill	Wheeler	Keller, P. M. #13R	2,800	Final completion	48331428	Acquired from Texaco Inc.
May 30, 1990	371122	Drill	Wheeler	Johnson, D. E. (West) #27	3,000	Final completion	48331425	Acquired from Texaco Producing Inc.
Aug 24, 1987	331008	Drill	Wheeler	Bush, W. B. #12	2,750	Final completion	48331317	Acquired from Texaco Inc.
Jun 2, 1987	330176	Drill	Wheeler	Keller, P. M. #25	2,750	Final completion	48331315	Acquired from Texaco Inc.
Jun 2, 1987	330175	Drill	Wheeler	Keller, P. M. #24	2,750	Final completion	48331314	Acquired from Texaco Inc.
May 18, 1987	327543	Drill	Wheeler	Bush, W. B. #11	2,700	Final completion	48331308	Acquired from Texaco Inc.
Feb 4, 1987	321758	Drill	Hansford	Morton, H. E. #2	7,900	Final completion	19530993	Acquired from Texaco Inc.
Sep 3, 1986	320185	Drill	Wheeler	Johnson, D. E. (West) #26	2,740	Final completion	48331282	Acquired from Texaco Producing Inc.
Jul 7, 1986	303957	Drill	Wheeler	Bush, W. B. #10	2,711	Final completion	48331279	Acquired from Texaco Inc.
Jul 1, 1986	303752	Drill	Wheeler	Keller, P. M. #22	2,718	Final completion	48331278	Acquired from Texaco Inc.
Nov 12, 1985	289661	Drill	Wheeler	Keller, P. M. #21	2,718	Final completion	48331265	Acquired from Texaco Inc.
Nov 8, 1985	289610	Drill	Wheeler	Keller, P. M. #20	2,728	Final completion	48331264	Acquired from Texaco Inc.
Jun 28, 1985	279211	Drill	Hemphill	Isaacs "209" #7209	7,500	Plugged dry hole (exploratory)	21131780	Acquired from Gulf Oil Corp.
Sep 6, 1984	250555	Drill	Hemphill	Gulf-Mesa Sappington #4	11,600	Final completion	21131718	Acquired from Gulf Oil Corp.
Apr 25, 1984	237395	Drill	Wheeler	Keller, P. M. #19	2,725	Final completion	48331193	Acquired from Texaco Inc.
Mar 11, 1982	156680	Drill	Wheeler	Keller, P.M. #18	2,710	Final completion	48331016	Acquired from Texaco Inc.
Mar 11, 1982	154377	Drill	Wheeler	Keller, P.M. #17	2,710	Final completion	48331017	Acquired from Texaco Inc.
Dec 30, 1981	146733	Drill	Hemphill	Isaacs #3-210	11,000	Final completion	21131440	Acquired from Gulf Oil Corp.