marketing covenantglossary / MARKETING COVENANT marketing covenant. Oil & gas. In a mineral lease, the implied promise that the lessee will market the production from the lease within a reasonable time and at a reasonable price. See REASONABLY-PRUDENT-OPERATOR STANDARD. 词条贡献者 法律翻译Carl,知名法学院法律英语专业,专注翻译各类与复杂商业纠纷有关的法律文件。