BRIEF-Bonterra Energy says borrowing base adjusted by about 10 pct to $380 mln
May 31 (Reuters) - Bonterra Energy Corp
* Bonterra energy announces update to borrowing base
* Borrowing base has been adjusted by approximately 10% from $425 million to $380 million
* Revolving period on facilities expires on april 30, 2017 Source text for Eikon: Further company coverage: (Bengaluru Newsroom: +1-646-223-8780)
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