Mineral Leasing Act Amendments of 2005 - Amends the Mineral Leasing Act to revise the circumstances and reinstatement petition filing deadlines for reinstatement of an oil or gas lease that was cancelled: (1) during the period beginning on September 1, 2001, and ending on the date that is 60 days after the date of enactment of this Act; or (2) after the date that is 60 days after the date of enactment of this Act.
Declares that this Act shall not apply to a lessee that received a notice of lease termination from the Secretary within 13 months after termination of the lease.