Anadarko Now Operating Four Drilling Rigs in Marcellus, Drilled First Lycoming County, PA Well in 1Q 2010

An update on Anadarko’s Marcellus drilling activities from a recent operations report released to investors:

Anadarko entered into a joint venture with Mitsui E&P USA LLC. Under the terms of the agreement, Mitsui will participate with Anadarko as a 32.5% partner in Anadarko’s Marcellus Shale assets in exchange for providing a $1.4 billion capital carry to Anadarko that covers 100% of its capital in 2010 and 90% thereafter. The carry is expected to be fully utilized by 2013. In addition, Mitsui committed to approximately $100 million to normalize its position with respect to Anadarko’s historical costs.

At the end of the 1st quarter, Anadarko was operating four rigs and participating in an additional 12 non-operated rigs. The company spud ten operated wells and completed two wells during the quarter. Anadarko expects to be operating six rigs by the end of the 2nd quarter 2010.

The Company completed and tested its first Lycoming County well (Larry’s Creek 3H) in January. The well was tested at a peak rate of approximately 6.1 MMcf/d.*

*Anadarko Operations Report First-Quarter 2010