Mr. Mallory,
I have not invested in Brigham, but I kicked myself several times for not buying it back in 2009. If you believe in the Bakken, Brigham Exploration (BEXP) and Oasis Petroleum (OAS) are about as pure play as you are going to get in small cap E&P. Brigham now has close to 380,000 acres in the Bakken and Three Forks and Oasis has over 300,000 acres. Both are expecting pretty amazing growth over the next few years.
The only thing I see holding the companies back is cost inflation. The cost of drilling and completion services continues to increase. There were a lot of companies that increased their capital budgets and did not increase production guidance in the first quarter. It was almost all attributed to inflation.