UPDATE 3-TransCanada sees Keystone XL delayed till second-half 2015
* TransCanada says approval delay could up Keystone XL costs
* Revises in-service date to second half of 2015
* First-quarter EPS C$0.63 vs C$0.50 year earlier
* First-quarter comparable earnings per share C$0.52
* Revenue rises 16 pct
* Shares fall 1.3 pct
By Scott Haggett and Bhaswati Mukhopadhyay
CALGARY, Alberta, April 26 (Reuters) - TransCanada Corp , Canada's No. 2 pipeline company, said on Friday the long wait for U.S. government approval of its controversial Keystone XL project will further delay completion of the pipeline and push its cost above the company's $5.3 billion estimate.
TransCanada, which reported a 27 percent rise in first-quarter profit on Friday, is waiting for the Obama administration to issue a presidential permit for construction of the line, which is designed to carry 830,000 barrels a day of Canadian and U.S. crude oil to refineries on the Gulf of Mexico coast. Continued...