July 28 (Reuters) - TransCanada TRP.TO executives say company is marketing a package stake in six pipeline projects in Mexico.
* Company marketing package of six Mexico pipelines in operation or construction
* The package excludes new $2.1 Billon Sur De Texas-Tuxpan line
* TransCanada says marketing up to 49.9 percent stake in Mexico pipelines, have not defined minimum stake Further company coverage: TRP.TO