HOUSTON, Aug. 13, 2014 /PRNewswire/ -- Gastar Exploration Inc. (NYSE MKT: GST) ("Gastar") today announced that the borrowing base under its revolving credit facility has been increased to $145 million. This represents a $25 million increase over Gastar's previous borrowing base effective March 2014. Currently, Gastar has drawn $20 million under the revolving credit facility, resulting in $125 million of unused borrowing capacity. Michael A. Gerlich, Gastar's Chief Financial Officer, commented, "Cash on hand, internally generated cash flow and available borrowings under our revolving credit facility should give Gastar more than adequate liquidity to fund our recently expanded 2014 capital expenditures budget.