(16) “lessee” means a person holding a leasehold interest in an oil or gas lease on lands beneath navigable waters (as that term is defined in section 1301(a) of title 43 ) or on submerged lands of the Outer Continental Shelf, granted or maintained under applicable State law or the Outer Continental Shelf Lands Act ( 43 U.S.C. 1331 et seq.);
33 USC § 2701(16)
None identified, default scope is assumed to be the parent (subchapter I) of this section.