American Oil and Gas Reporter - June 2012 - 61

SpecialReport: Permian Basin Update
Third Bone Spring potential west of the river. “We have gotten good results in the Third Bone Spring sand,” he says. Early production from the seven wells the company tested in the first quarter of 2012 averaged 1,004 boe/d, 73 percent of it oil. Five of the wells generated 30day production rates that averaged 783 boe/d with 72 percent oil. “The best well we have drilled so far in the Third Bone Spring is the Cadenhead 18 No. 1 in Ward County, with early production of 1,737 boe/d (76 percent oil) on a 16⁄64-inch choke and 4,400 pounds of pressure,” McManus continues. “We have 92 potential locations on 30,000 net acres with 160-acre spacing east of the river.” He says Energen is using 10 or 11 frac stages along 4,400-foot laterals in its Third Bone Spring wells east of the Pecos River. At a pretax rate of return of 72 percent (based on $100 bbl oil prices), these wells have an average EUR of 475,000 boe a well, McManus details. Their product mix is two-thirds oil, with the remainder split between natural gas liquids and dry gas. Energen also has trimmed the cost of its Third Bone Spring wells, setting its target cost to drill and complete at $6.9 million, he says. Energen will operate five-seven rigs in the Bone Spring this year and drill 43 net wells, McManus reports. Energen’s Bone Spring production secures its rights to drill the shallower Avalon Shale at a later date, he notes. Given that the Avalon Shale is a gassier play than the Third Bone Spring, Energen has no plans to pursue this potential at existing gas prices, McManus relates. Below the Bone Spring, however, lies the Wolfcamp Shale. He says Energen has drilled three Wolfcamp wells in Reeves County, Tx., on the west side of the Pecos River, which were purchased by BHP Billiton earlier this year. BHP carried Energen in the horizontal completion of two of the wells. The northernmost of these two, the State C-19-1-5 No. 2H, appears to be the better early performer, according to McManus. Before it was shut in for tubing installation, it had a flow-back rate of 600-650 boe/d, 60 percent of it oil. Analysis of the southernmost of the two wells, the Cottonmouth 58-47 No. 1, is proving more difficult, McManus acknowledges, in part because only 2,800 of 4,000 feet could be completed. Never-

LINN Energy LLC reports it is running five rigs in the Permian Basin and plans to drill 100 Wolfberry wells in 2012. The focus of that drilling, the company says, has been on vertical wells in Texas’ Midland, Martin, Ector and Howard counties.

theless, at its highest rate, the Cottonmouth well flowed back at 400-450 boe/d with 25 percent oil. It was shut in for tubing installation, as well. “We have 110,000 net acres in the Delaware Basin that could be prospective for the Wolfcamp and Avalon shales,” McManus says. “The potential from this stacked pay opportunity is significant, and the success of one or both of these plays could lead to many years of drilling for Energen in the Delaware Basin.” Multitasking Coolidge, Devon’s unit vice president, says the company has “a very active program focused on both developments and new acreage.” Not only is Devon active in both the Bone Spring and Wolfberry plays, but Coolidge says the company also has assembled 500,000 net acres in Texas’ Sterling, Mitchell, Nolan and Fisher counties in the Cline Shale play on the Midland Basin’s eastern shelf. The Cline Shale lies right below the Wolfcamp, and Coolidge says Devon is drilling its first test well in Sterling County. He notes that Laredo Petroleum Holdings Inc. has been most active at drilling horizontal Wolfcamp and Cline wells in Glasscock County. “We plan to drill 15 wells in the Cline this year, all horizontal,” Coolidge states. “We have assembled a lot of acreage and are going into our testing phase. We will drill vertical pilot holes and capture a lot of data.” He deems the Cline and Wolfcamp potentially large resource plays with worldclass source rock interbedded with carbonates and shale, and which feature good porosity. While Devon’s way forward in

the Cline Shale is in exploratory mode, the company is in the development phase with both the Bone Spring and Wolfberry plays. He says it has 10 rigs running in the Delaware Basin, eight of them in southeastern New Mexico and two in Texas. All are drilling horizontal in the Bone Spring as well as the Delaware sands, also known as the Lower Brushy Canyon, which lie right above the Bone Spring. According to Coolidge, Devon’s Bone Spring wells have averaged 83 percent liquids, which break down at 68 percent crude oil and 15 percent NGLs. He says Devon is drilling 4,000-5,500 foot laterals in which it employs as many 22 frac stages. In some cases, he continues, Devon uses a pump and plug method in which it cements the casing, perforates the zone, performs the frac, pumps in a plug and perforating gun, pulls out the wireline and then repeats the process. “In some areas of Texas, we are using external packages and sliding sleeve systems,” Coolidge adds. Pointing to Texas’ Reeves and Culberson counties west of the Pecos River, he mentions the opportunity for a Wolfbone play, although he says Devon has not yet commingled the Wolfcamp and Bone Spring. Coolidge reports Devon is concentrating on the Second Bone Spring in Eddy and Lea counties on New Mexico’s northwestern shelf, and the Third Bone Spring on the play’s Texas side. “We have total acreage in the Bone Spring of 185,000 acres,” he continues. “We have identified 550 locations in both the Bone Spring and Delaware Sands, but we believe there are opportunities in other intervals as well.” According to Coolidge, Devon plans to drill 110 horizontal wells this year in the Delaware Basin, 85 of which will be
JUNE 2012 61



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
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American Oil and Gas Reporter - June 2012 - 186
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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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