Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVES. (Details)

v3.19.2
DERIVATIVES. (Details) - Non Designated Derivative Instruments [Member] - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Cash Collateral Balance [Member]    
Derivative assets $ 1,008 $ 8,479
Commodity Contracts [Member]    
Derivative assets 5,437 1,765
Derivative liabilities $ 684 $ 6,309