With this transaction, Williams’s recently acquired assets now represent 1.3 trillion cubic feet equivalent (Tcfe) of probable and possible reserves on 10-acre spacing.
That brings Williams’s total probable and possible reserves in the Piceance Basin to 5.8Tcfe, which includes the company’s year-end 2007 estimate. Williams also has 2.8Tcfe of proved reserves in the Piceance Basin, based on year-end 2007 estimates.
In May 2008, Williams announced completion of a $285 million acquisition that represented more than 1.9Tcfe of estimated probable and possible reserves on 10-acre spacing. The acquired properties, which also include related gathering-and-treating facilities and producing properties, are located in the Ryan Gulch area of the Piceance Basin Highlands in the Rio Blanco County of Colorado.
Approximately two-thirds of the acquired acreage is located in an area of mutual interest in which Williams, as operator, participates with a third party, ExxonMobil. By agreement, ExxonMobil had the option to purchase up to a 49% interest in assets that lie within the area of mutual interest.
By choosing to exercise its purchase option, ExxonMobil is acquiring, on the same terms and conditions as Williams’s purchase, approximately 7,000 acres of the 24,000 net acres Williams acquired in the May transaction.
