Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVES. (Details)

v3.19.1
DERIVATIVES. (Details) - Non Designated Derivative Instruments [Member] - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Cash Collateral Balance [Member]    
Derivative assets $ 4,409 $ 8,479
Commodity Contracts [Member]    
Derivative assets 1,155 1,765
Derivative liabilities $ 5,156 $ 6,309