Recalling an estimate made by Continental in 2010 that [the Bakken] has estimated ultimate recoverable reserves totaling 24 billion barrels of oil equivalent (boe) — excluding any reserves from the lower Three Forks benches (i.e. TF2, TF3 and TF4) — Stark said an update to include the lower benches would increase the estimate to 32 billion barrels. The revised estimate incorporates lower Three Forks core data and keeps unchanged the 3.5% recovery factor used with the previous estimate of reserves based on the Middle Bakken and upper Three Forks (TF1) formation.
“What is the true recovery factor? We still don’t know; we’re still estimating it,” said Stark. However, for perspective, every 1% in incremental recovery factor translates into an additional nine billion barrels of estimated ultimate recoverable reserves in the field, he added. “It’s a remarkably huge field.”I believe this site requires a subscription but periodically it posts a free article. I could be wrong. A reader was nice enough to send a link to this article.
The article mentions the Hawkinson wells and the "Barney unit." I had forgotten about the Barney well. There are a number of "Barney" wells in the Bakken; I believe this particular one testing the lower Three Forks is in Truax oil field.
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