A bill to facilitate and encourage the production of oil from tar sand and other hydrocarbon deposits.

[AI summary unavailable — showing source text] Amends the Mineral Lands Leasing Act of 1920 and the Mineral Leasing Act for Acquired Lands to expand the application of such Acts to include gilsonite and all vein-type solid hydrocarbons. Authorizes the Secretary of the Interior to establish a lower aggregate acreage limitation for leases in areas known to contain deposits of tar sand. Directs the Secretary, under specified conditions, to extend a lease for not less than three years beyond its primary term in areas known to contain deposits of tar sand. Permits the owner of an oil and gas lease issued before the date of enactment of this Act to apply to the Secretary to convert the lease to a new combined hydrocarbon lease.…