CFR › Title 43 › Part 3137 › §3137.2743 CFR §3137.27Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkNo subsequent contract or obligation—(a)Modifies the terms or conditions of the unit agreement; or(b)Relieves the unit operator of any right or obligation under the unit agreement.