; and (B) in paragraph (4)— (i) by striking six-year and inserting four-year ; and (ii) by striking period shall and inserting period may ; and (2) in subsection (b)(1)— (A) in subparagraph (C), by striking and ; (B) in subparagraph (D), by striking the period and inserting ; and ; and (C) by adding at the end the following: (E) is made within the adjustment period for that obligation. . 15. Obligation period Section 115(c) of the Federal Oil and Gas Royalty Management Act of 1982 ( 30 U.S.C. 1724(c) ) is amended by adding at the end the following new paragraph: (3) Adjustments In the case of an adjustment under section 111A(a) in which a recoupment by the lessee results in an underpayment of an obligation, the obligation becomes due on the date the lessee or its designee makes the adjustment. . 16. Tolling agreements and subpoenas (a) Tolling agreements Section 115(d)(1) of the Federal Oil and Gas Royalty Management Act of 1982 ( 30 U.S.C. 1724(d)(1) ) is amended by striking (with notice to the lessee who designated the designee) . (b) Subpoenas Section 115(d)(2)(A) of the Federal Oil and Gas Royalty Management Act of 1982 ( 30 U.S.C. 1724(d)(2)(A) ) is amended by striking (with notice to the lessee who designated the designee, which notice shall not constitute a subpoena to the lessee) . 17. Appeals Section 115(h) of the Federal Oil and Gas Royalty Management Act of 1982 ( 30 U.S.C. 1724(h) ) is amended— (1) in paragraph (1), in the heading, by striking 33-month and inserting 48-month ; (2) by striking 33 months each place it appears and inserting 48 months