Brigham Adds 10,000 Acres in Rough Rider Project

March 26, 2010 PLS A&D Transactions

Brigham Exploration agreed to acquire just over 10,000 net acres in the NE portion of its Rough Rider project area for undisclosed terms. The acquisition brings Brigham's acreage position in Rough Rider to ~115,000 net acres and increases its core acreage position in the Williston Basin to ~157,000 net acres. The acquisition adds over 23 net potential Bakken drilling locations assuming 1,280 acre spacing and three wells per spacing unit. Brigham plans to drill its first operated Rough Rider Three Forks well during Q2, and with success, the newly acquired acreage adds over 23 net potential Three Forks locations to Brigham's inventory. Brigham completed its operated Jerome Anderson 15-10 #1H Bakken well in its Ross project area in Mountrail Co., North Dakota at an early 24 hour peak rate of 3,115 BOEPD. Brigham maintains 50% WI in the well, which was completed with 30 frac stages and is Brigham's highest initial rate completion to date in the Ross project area. Subsequent to completing several successful high frac stage short laterals, Brigham has now completed four consecutive long lateral high frac stage Bakken and Three Forks wells in its Ross Area with an average early 24 hour flow back rate of ~2,442 BOEPD. Also participating in the Jerome Anderson with 49% WI was Lario Oil & Gas Co.