CALGARY, ALBERTA--(Marketwire - June 30, 2010) - TransCanada Corporation (TSX:TRP) (NYSE:TRP) (TransCanada) today announced that line fill of the first phase of the US$12 billion Keystone Pipeline has been completed and commercial deliveries of crude oil to U.S. Midwest markets ...

The 266 km (165 mile) south section of the Peace River Mainline (part of the NGTL System) will be retired.

The Mazatlan Pipeline Project has 430 km (267 miles)of pipeline in length. It's estimaed to carry 202 million cubic feet per day of natural gas.

TransCanada Corporation announced it has successfully concluded the Keystone XL open season, securing approximately 500,000 barrels per day of firm, 20 year commitments, positioning the proposed project to proceed. Interest in the project remains strong and TransCanada will look to continue to secure additional long-term contracted volumes.