American Oil and Gas Reporter - June 2012 - 59

SpecialReport: Permian Basin Update
it is smart since all the zones are commingled, but it has been astonishing,” he says of the Wolfberry’s development. CrownQuest, which began operating in the Wolfberry in 2007 and has 100,000 gross acres in the play, is drilling vertical wells with 10-12 frac stages, commingling all its targeted zones. “But we certainly would not rule out drilling horizontal in the future,” Dunn adds. “There seems to be more excitement in horizontals because they have higher initial production. Public companies care more about IPs.” Growing In The Wolfberry The Wolfberry is also a huge part of Energen Resources Corp.’s portfolio, says James McManus, the company’s president and CEO. He holds that oil prices and technology are driving the play. According to McManus, Energen has invested $900 million in Permian Basin acquisitions during the last four years, with $750 million of that going toward the Wolfberry fairway. Energen has 49,000 net acres in the play, with 33,000 net acres of its leasehold remaining to be developed. “We have a potential inventory of 825 drilling locations on 40-acre spacing and another 675 on 20-acre spacing,” McManus explains. “We are drilling 175 net wells this year in Midland, Martin, Glasscock, Howard, and Reagan counties at a drilland-complete cost of $2.3 million a well.” Energen reports its pretax rate of return from these wells is 33 percent at oil prices of $100 a barrel. He reports Energen is drilling vertical wells from 7,500 to 10,500 feet to include not only the Spraberry and Wolfcamp,

SandRidge Exploration and Production LLC says it has focused its Permian Basin drilling on low-cost, shallow, vertical wells. With 12 rigs running, the company leads the industry in Central Basin Platform drilling.

but also the Dean, Cline and Strawn, employing six-eight frac stages a well. In addition to the vertical Wolfberry play, McManus says he believes there is promise for horizontal drilling in the Cline and Wolfcamp shales, the latter of which is about 1,000 feet thick and has “four benches (A, B, C and D) with horizontal drilling potential.” “We participated as a nonoperated partner this year with Laredo Petroleum in a horizontal test in the Wolfcamp Shale in Glasscock County,” he continues. “The results have been very encouraging and suggest that horizontal drilling programs in the Wolfcamp and Cline may offer En-

ergen greater potential than 20-acre downspacing in the vertical Wolfberry play.” McManus says Energen’s Wolfberry production is 61 percent crude oil, 23 percent natural gas liquids and 16 percent dry gas. He indicates that the estimated ultimate recovery from an Energen Wolfberry well averages 155,000 boe. Bone Spring Further west, McManus says Energen is actively drilling in the horizontal Third Bone Spring trend in the Delaware Basin. The company indicates it first became familiar with the potential there through its 50 percent nonoperated interest in the Warwink Field in Texas’ Ward and Winkler counties. After acquiring the other 50 percent interest, he says, Cimarex Energy Co. began redeveloping the field in 2006 by drilling laterals out of the existing vertical well bores. “We liked the results, but didn’t have a lot of acreage in the play until we bought 40,000 acres from SandRidge Energy in 2010 for $110 million,” he recalls. Energen operates only on the Texas side of the Delaware Basin, and McManus says the company delineates its Delaware Basin acreage position according to whether the acres lie east or west of the Pecos River. He deems those to the east largely proven, but those to the west more exploratory and says Energen’s 2012 and 2013 drilling programs are focused on its 30,000 net acres east of the river. Energen also has approximately 50,000 acres with
JUNE 2012 59

Devon Energy Co. notes it is drilling in both the Bone Spring and Wolfberry plays, and also has assembled 500,000 net Cline Shale play acres in Texas’ Sterling, Mitchell, Nolan and Fisher counties.



Table of Contents for the Digital Edition of American Oil and Gas Reporter - June 2012

American Oil and Gas Reporter - June 2012
Contents
Reports
Calendar
Oil & Gas Counts
State Legislative
Industry Digest
Natural Gas NSPS Affects a Variety of Equipment
Federal Legislation
SPCC
EPA
Keystone XL
Tech Connections
Washington Watch
Anadarko Finds World-Class Reservoirs in Deepwater Mozambique
Variety of Projects Have Permian Basin Hopping
Infrastructure Bottlenecks Easing in Permian Region
Completion Design Optimizes Yeso-San Andres Oil Wells
Cover Story
Beaver Creek CO2 Flood Boosts Madison Production
Study Evaluates Low-Salinity Waterfloods
Variable Speed Drives Coming of Age
Activity Spurring Artificial Lift Innovations
Project Shows STMZ’s Viability for Lower Tertiary Completions
ICDs, Modeling Improve Horizontal Shelf Well Completion
Intelligent Gas Lift Maximizes Production, Recovery
KOGA
CIPA
TOGA
TAEP
Frac Rules
Marcellus Regs
Conventions
The American Well Servicing Directory, Summer 2012
Industry Focus
Classified Advertising
Advertisers Index
American Oil and Gas Reporter - June 2012 - American Oil and Gas Reporter - June 2012
American Oil and Gas Reporter - June 2012 - Cover2
American Oil and Gas Reporter - June 2012 - Contents
American Oil and Gas Reporter - June 2012 - Reports
American Oil and Gas Reporter - June 2012 - 5
American Oil and Gas Reporter - June 2012 - 6
American Oil and Gas Reporter - June 2012 - 7
American Oil and Gas Reporter - June 2012 - Calendar
American Oil and Gas Reporter - June 2012 - 9
American Oil and Gas Reporter - June 2012 - 10
American Oil and Gas Reporter - June 2012 - 11
American Oil and Gas Reporter - June 2012 - 12
American Oil and Gas Reporter - June 2012 - 13
American Oil and Gas Reporter - June 2012 - Oil & Gas Counts
American Oil and Gas Reporter - June 2012 - 15
American Oil and Gas Reporter - June 2012 - Industry Digest
American Oil and Gas Reporter - June 2012 - 17
American Oil and Gas Reporter - June 2012 - 18
American Oil and Gas Reporter - June 2012 - 19
American Oil and Gas Reporter - June 2012 - 20
American Oil and Gas Reporter - June 2012 - 21
American Oil and Gas Reporter - June 2012 - 22
American Oil and Gas Reporter - June 2012 - 23
American Oil and Gas Reporter - June 2012 - Natural Gas NSPS Affects a Variety of Equipment
American Oil and Gas Reporter - June 2012 - 25
American Oil and Gas Reporter - June 2012 - 26
American Oil and Gas Reporter - June 2012 - 27
American Oil and Gas Reporter - June 2012 - Federal Legislation
American Oil and Gas Reporter - June 2012 - 29
American Oil and Gas Reporter - June 2012 - 30
American Oil and Gas Reporter - June 2012 - 31
American Oil and Gas Reporter - June 2012 - SPCC
American Oil and Gas Reporter - June 2012 - 33
American Oil and Gas Reporter - June 2012 - Keystone XL
American Oil and Gas Reporter - June 2012 - 35
American Oil and Gas Reporter - June 2012 - 36
American Oil and Gas Reporter - June 2012 - Tech Connections
American Oil and Gas Reporter - June 2012 - 38
American Oil and Gas Reporter - June 2012 - Washington Watch
American Oil and Gas Reporter - June 2012 - Anadarko Finds World-Class Reservoirs in Deepwater Mozambique
American Oil and Gas Reporter - June 2012 - 41
American Oil and Gas Reporter - June 2012 - 42
American Oil and Gas Reporter - June 2012 - 43
American Oil and Gas Reporter - June 2012 - 44
American Oil and Gas Reporter - June 2012 - 45
American Oil and Gas Reporter - June 2012 - 46
American Oil and Gas Reporter - June 2012 - 47
American Oil and Gas Reporter - June 2012 - 48
American Oil and Gas Reporter - June 2012 - 49
American Oil and Gas Reporter - June 2012 - Variety of Projects Have Permian Basin Hopping
American Oil and Gas Reporter - June 2012 - 51
American Oil and Gas Reporter - June 2012 - 52
American Oil and Gas Reporter - June 2012 - 53
American Oil and Gas Reporter - June 2012 - 54
American Oil and Gas Reporter - June 2012 - 55
American Oil and Gas Reporter - June 2012 - 56
American Oil and Gas Reporter - June 2012 - 57
American Oil and Gas Reporter - June 2012 - 58
American Oil and Gas Reporter - June 2012 - 59
American Oil and Gas Reporter - June 2012 - 60
American Oil and Gas Reporter - June 2012 - 61
American Oil and Gas Reporter - June 2012 - 62
American Oil and Gas Reporter - June 2012 - 63
American Oil and Gas Reporter - June 2012 - Infrastructure Bottlenecks Easing in Permian Region
American Oil and Gas Reporter - June 2012 - 65
American Oil and Gas Reporter - June 2012 - 66
American Oil and Gas Reporter - June 2012 - 67
American Oil and Gas Reporter - June 2012 - 68
American Oil and Gas Reporter - June 2012 - 69
American Oil and Gas Reporter - June 2012 - 70
American Oil and Gas Reporter - June 2012 - 71
American Oil and Gas Reporter - June 2012 - Completion Design Optimizes Yeso-San Andres Oil Wells
American Oil and Gas Reporter - June 2012 - 73
American Oil and Gas Reporter - June 2012 - 74
American Oil and Gas Reporter - June 2012 - 75
American Oil and Gas Reporter - June 2012 - 76
American Oil and Gas Reporter - June 2012 - 77
American Oil and Gas Reporter - June 2012 - 78
American Oil and Gas Reporter - June 2012 - 79
American Oil and Gas Reporter - June 2012 - 80
American Oil and Gas Reporter - June 2012 - 81
American Oil and Gas Reporter - June 2012 - Cover Story
American Oil and Gas Reporter - June 2012 - 83
American Oil and Gas Reporter - June 2012 - 84
American Oil and Gas Reporter - June 2012 - 85
American Oil and Gas Reporter - June 2012 - 86
American Oil and Gas Reporter - June 2012 - 87
American Oil and Gas Reporter - June 2012 - 88
American Oil and Gas Reporter - June 2012 - 89
American Oil and Gas Reporter - June 2012 - 90
American Oil and Gas Reporter - June 2012 - 91
American Oil and Gas Reporter - June 2012 - Beaver Creek CO2 Flood Boosts Madison Production
American Oil and Gas Reporter - June 2012 - 93
American Oil and Gas Reporter - June 2012 - 94
American Oil and Gas Reporter - June 2012 - 95
American Oil and Gas Reporter - June 2012 - 96
American Oil and Gas Reporter - June 2012 - 97
American Oil and Gas Reporter - June 2012 - 98
American Oil and Gas Reporter - June 2012 - 99
American Oil and Gas Reporter - June 2012 - Study Evaluates Low-Salinity Waterfloods
American Oil and Gas Reporter - June 2012 - 101
American Oil and Gas Reporter - June 2012 - 102
American Oil and Gas Reporter - June 2012 - 103
American Oil and Gas Reporter - June 2012 - Variable Speed Drives Coming of Age
American Oil and Gas Reporter - June 2012 - 105
American Oil and Gas Reporter - June 2012 - 106
American Oil and Gas Reporter - June 2012 - 107
American Oil and Gas Reporter - June 2012 - Activity Spurring Artificial Lift Innovations
American Oil and Gas Reporter - June 2012 - 109
American Oil and Gas Reporter - June 2012 - 110
American Oil and Gas Reporter - June 2012 - 111
American Oil and Gas Reporter - June 2012 - 112
American Oil and Gas Reporter - June 2012 - 113
American Oil and Gas Reporter - June 2012 - 114
American Oil and Gas Reporter - June 2012 - 115
American Oil and Gas Reporter - June 2012 - 116
American Oil and Gas Reporter - June 2012 - 117
American Oil and Gas Reporter - June 2012 - Project Shows STMZ’s Viability for Lower Tertiary Completions
American Oil and Gas Reporter - June 2012 - 119
American Oil and Gas Reporter - June 2012 - 120
American Oil and Gas Reporter - June 2012 - 121
American Oil and Gas Reporter - June 2012 - 122
American Oil and Gas Reporter - June 2012 - 123
American Oil and Gas Reporter - June 2012 - 124
American Oil and Gas Reporter - June 2012 - 125
American Oil and Gas Reporter - June 2012 - 126
American Oil and Gas Reporter - June 2012 - 127
American Oil and Gas Reporter - June 2012 - 128
American Oil and Gas Reporter - June 2012 - 129
American Oil and Gas Reporter - June 2012 - 130
American Oil and Gas Reporter - June 2012 - ICDs, Modeling Improve Horizontal Shelf Well Completion
American Oil and Gas Reporter - June 2012 - 132
American Oil and Gas Reporter - June 2012 - 133
American Oil and Gas Reporter - June 2012 - 134
American Oil and Gas Reporter - June 2012 - 135
American Oil and Gas Reporter - June 2012 - 136
American Oil and Gas Reporter - June 2012 - 137
American Oil and Gas Reporter - June 2012 - 138
American Oil and Gas Reporter - June 2012 - 139
American Oil and Gas Reporter - June 2012 - 140
American Oil and Gas Reporter - June 2012 - Intelligent Gas Lift Maximizes Production, Recovery
American Oil and Gas Reporter - June 2012 - 142
American Oil and Gas Reporter - June 2012 - 143
American Oil and Gas Reporter - June 2012 - 144
American Oil and Gas Reporter - June 2012 - 145
American Oil and Gas Reporter - June 2012 - 146
American Oil and Gas Reporter - June 2012 - 147
American Oil and Gas Reporter - June 2012 - 148
American Oil and Gas Reporter - June 2012 - KOGA
American Oil and Gas Reporter - June 2012 - 150
American Oil and Gas Reporter - June 2012 - 151
American Oil and Gas Reporter - June 2012 - CIPA
American Oil and Gas Reporter - June 2012 - 153
American Oil and Gas Reporter - June 2012 - 154
American Oil and Gas Reporter - June 2012 - 155
American Oil and Gas Reporter - June 2012 - TOGA
American Oil and Gas Reporter - June 2012 - 157
American Oil and Gas Reporter - June 2012 - 158
American Oil and Gas Reporter - June 2012 - 159
American Oil and Gas Reporter - June 2012 - 160
American Oil and Gas Reporter - June 2012 - 161
American Oil and Gas Reporter - June 2012 - 162
American Oil and Gas Reporter - June 2012 - 163
American Oil and Gas Reporter - June 2012 - TAEP
American Oil and Gas Reporter - June 2012 - 165
American Oil and Gas Reporter - June 2012 - 166
American Oil and Gas Reporter - June 2012 - 167
American Oil and Gas Reporter - June 2012 - 168
American Oil and Gas Reporter - June 2012 - 169
American Oil and Gas Reporter - June 2012 - 170
American Oil and Gas Reporter - June 2012 - Frac Rules
American Oil and Gas Reporter - June 2012 - Marcellus Regs
American Oil and Gas Reporter - June 2012 - 173
American Oil and Gas Reporter - June 2012 - Conventions
American Oil and Gas Reporter - June 2012 - The American Well Servicing Directory, Summer 2012
American Oil and Gas Reporter - June 2012 - 176
American Oil and Gas Reporter - June 2012 - 177
American Oil and Gas Reporter - June 2012 - 178
American Oil and Gas Reporter - June 2012 - 179
American Oil and Gas Reporter - June 2012 - 180
American Oil and Gas Reporter - June 2012 - 181
American Oil and Gas Reporter - June 2012 - 182
American Oil and Gas Reporter - June 2012 - 183
American Oil and Gas Reporter - June 2012 - 184
American Oil and Gas Reporter - June 2012 - 185
American Oil and Gas Reporter - June 2012 - 186
American Oil and Gas Reporter - June 2012 - 187
American Oil and Gas Reporter - June 2012 - 188
American Oil and Gas Reporter - June 2012 - 189
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American Oil and Gas Reporter - June 2012 - 195
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American Oil and Gas Reporter - June 2012 - 198
American Oil and Gas Reporter - June 2012 - 199
American Oil and Gas Reporter - June 2012 - 200
American Oil and Gas Reporter - June 2012 - 201
American Oil and Gas Reporter - June 2012 - 202
American Oil and Gas Reporter - June 2012 - Industry Focus
American Oil and Gas Reporter - June 2012 - 204
American Oil and Gas Reporter - June 2012 - 205
American Oil and Gas Reporter - June 2012 - 206
American Oil and Gas Reporter - June 2012 - 207
American Oil and Gas Reporter - June 2012 - 208
American Oil and Gas Reporter - June 2012 - Classified Advertising
American Oil and Gas Reporter - June 2012 - Advertisers Index
American Oil and Gas Reporter - June 2012 - Cover3
American Oil and Gas Reporter - June 2012 - Cover4
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