Energen agrees to pay promptly as incurred, to the full extent permitted by law, all legal, accounting and other professional fees and expenses (“Professional Fees”) which Executive may reasonably incur (i) as a result of any contest (regardless of the outcome thereof) by Energen, Executive or others of the validity or enforceability of, or liability under, any provision of this Agreement or any guarantee of performance thereof (including as a result of any contest by Executive about the amount of any payment pursuant to this Agreement); or (ii) as a result of any contest by a taxing authority of Executive’s tax treatment of any amounts received under this or any other Employer agreement or plan to the extent such tax treatment is consistent with the determinations made under Section 5.