For definitions of “mineral leasing laws”, referred to in first undesignated par. of subsec. (a), and “Leasing Act minerals”, referred to in fifth undesignated par. of subsec. (a) and subsecs. (b) to (d), see section
530 of this title.
1960—Subsec. (a).
Pub. L. 86–507 inserted “or by certified mail” after “registered mail” in two places in last paragraph.