Feb 27 (Reuters) - Enbridge Inc -
* Enbridge says all pipelines expected to be returned to service later today
* Enbridge says 975 barrels of crude oil released from station piping inside Griffith terminal in Griffith, Ind.
* Enbridge says repairs were completed last night and work is underway to safely restart all pipelines in and out of the Griffith terminal
* Enbridge says majority of free product was recovered, collection of remaining oil progressing well though cold weather in the Chicago area is affecting effort