Legislative Hearing on H.R. 4293, to Authorize the Approval of Natural Gas Pipelines and Establish Deadlines and Expedite Permits for Certain Natural Gas Gathering Lines on Federal Land and Indian Land, ``Natural Gas Gathering Enhancement Act''; and H.R. 1587, to Authorize the Secretary of the Interior and the Secretary of Agriculture to Issue Permits for Rights-of-Way, Temporary Easements, or Other Necessary Authorizations to Facilitate Natural Gas, Oil, and Petroleum Product Pipelines and Related Facilities on Eligible Federal Lands, and for Other Purposes, ``Energy Infrastructure Improvement Act''