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Permian Basin

The oil-rich Permian Basin stretches from west Texas, just south of Lubbock to just south of Midland-Odessa, and into southeastern New Mexico.

The original oil resource in the Permian Basin reservoirs is estimated at 95 billion barrels. But until recently many thought as much as two-thirds of that oil would be stranded – meaning it could not be recovered – from the producing formations.

A critical part of Energen Resources' (ERC) oil and gas exploration and production business is its ability to add value to acquisitions by rejuvenating older fields with new technology. That’s been particularly true in the Permian Basin plays.

ERC used waterflood operations to revive the North Westbrook Unit, a field it acquired in 2005. Since then, production jumped from 900 barrels a day to nearly 5,000 barrels a day, close to the field’s peak production in 1985, when Chevron Corporation operated it.

That field (Westbrook Field) is also home to a piece of West Texas history: the Permian Basin’s oldest oil producing well, W. H. Abrams #1 (commenced drilling in Feb 1920), which is credited with fueling the growth of Midland and Odessa from cow towns to boomtowns. Both towns have ridden booms and busts over the years, but they are once again bustling, thanks to Permian oil and liquids production.

ERC employs about 210 people in its Midland District, and at year-end 2013, the company's Permian Basin holdings represented approximately 71 percent of ERC's proved reserves. It also contains 99 percent of the company's oil reserves.

ERC allotted about 94 percent of its 2013 capital spending budget to development of its Permian Basin properties.  That allotment is estimated to increase to approximately 99 percent in 2014.

Midland District Office
3510 North A Street
Buildings A & B
Midland, TX 79705
Phone: (432) 687-1155
Fax: (432) 687-1796
Andrews Field Office
Street Address
3500 SWCR 1500
 Andrews, Texas 79714
Phone: (432) 524-2102
Mailing Address
P. O. Box 709
Andrews, Texas 79714
Fivestone Field Office
2072 CR 280
Garden City, TX 79739

Limestone Field Office
3857 CR 2701
P.O. Box 117
Tarzan, TX 79783
Mentone Field Office
1149 CR 200
Mentone, TX 79754

Penwell Field Office
Street Address
236 South FM 1601
Penwell, TX 79776
Phone: (432) 580-6321
Mailing Address
P.O. Box 97
Penwell, TX 79776
Seminole Field Office
Street Address
950 County Road 308
Seminole, TX 79360
Phone: (432) 758-3983
Mailing Address
HCR4 Box 546A
Seminole, TX 79360
Westbrook Field Office
Street Address
11301 County Rd 238
Westbrook, TX 79565
Phone: (325) 644-3281
Mailing Address
P.O. Box 39
Westbrook TX 79565
Whiteface Field Office
Street Address
1700 County Road 197
Lehman, TX 79379
Phone: (806) 525-4373
Mailing Address
P. O. Box 136
Whiteface, TX 79379
Permian Basin 
2015 Proved Reserves:337,008 MBOE
2015 Net Production:  20,664 MBOE
2015 Reserves-to-Production ratio:    16.31 years