Requires federal agencies to keep processing oil and gas permit-to-drill applications even when there are pending civil lawsuits, unless a court has vacated the underlying lease, and makes permits valid for a single four-year term or until the lease expires, whichever comes first. Restricts federal courts from vacating, blocking, or otherwise stopping lease-sale activities or the award of leases unless development would cause imminent and substantial environmental harm and there is no other adequate legal remedy.