WAIS Document Retrieval[Code of Federal Regulations] [Title 43, Volume 2] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 43CFR3137.130] [Page 406] TITLE 43--PUBLIC LANDS: INTERIOR CHAPTER II--BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR PART 3130_OIL AND GAS LEASING: NATIONAL PETROLEUM RESERVE, ALASKA-- Table of Contents Subpart 3137_Unitization Agreements_National Petroleum Reserve-Alaska Sec. 3137.130 Under what circumstances will BLM approve a voluntary termination of the unit? BLM will approve the voluntary termination of the unit at any time-- (a) Before the unit operator discovers production sufficient to establish a participating area; and (b) The unit operator submits to BLM certification that at least 75 percent of the operating rights owners in the unit agreement, on a surface acreage basis, agree to the termination.