Rocky Mountain News: A move to slow oil shale development in northwestern Colorado appeared successful as the U.S. House was expected to vote on a spending bill that removed a 2008 deadline for the federal government to issue commercial leasing rules. U.S. Sen Ken Salazar and Reps. John Salazar and Mark Udall, all Colorado Democrats, placed language in the bill that prohibits the Bureau of Land Management from issuing any final regulations for oil shale leasing or offering any leases during fiscal year …