Oklahoma City,OK-Based Oil & Gas Co Chesapeake Energy Generated 4Q 2017 Net Income of $334 Mil as Compared to a 4Q 2016 Net Loss of 341 Mil ....................................................................................... Chesapeake Received a US Federal Income Tax Benefit of $1.676 Bil in the 4Q 2017 Due to the Very Lucrative US Federal Income Tax Debt Forgiveness Feature in the Trump Tax Cuts Act, But Decided to Precisely Offset It With an Identical Reduction in Its Deferred Income Tax Valuation Allowance