UPDATE 1-Pacific Rubiales accepts Alfa-Harbour's offer, may weigh others
(Adds Pacific Rubiales' option to consider other offers, adds quotes and background)
BOGOTA May 21 (Reuters) - Pacific Rubiales Energy Corp , the largest private oil producer in Colombia, has accepted a C$6.50-per-share takeover bid from Mexican conglomerate Alfa SAB de CV and investment firm Harbour Energy Ltd but said it might consider other offers.
The announcement came late on Wednesday after a group of Venezuelan investors opposed to the Alfa-Harbour bid said they might continue to buy up more Pacific shares.
The Venezuelan group has raised its stake in Toronto-based Pacific to 19.5 percent from 12 percent over the past two weeks.
Pacific said this month that it had received an offer from Alfa and Harbour Energy to buy the company for about C$2.05 billion ($1.70 billion), or C$6.50 per share.
Pacific shares were up 2.58 percent at C$6.35 on Thursday.
The news of the bid had sent the shares up more than 25 percent on the Toronto and Bogota stock markets earlier this month, but they stabilized as the Venezuelan investors increased their ownership above Alfa's current 18.95 percent.
Pacific's board unanimously approved the Alfa-Harbour offer, it said in Wednesday's statement, and the company expects the deal to close in the third quarter, pending shareholder approval.
But it said it could accept any "superior proposal" to acquire all outstanding common shares if Alfa and Harbour do not match it. Continuación...