AUGUSTA, Maine — The Kennebec Valley Gas Co., which has proposed a natural gas pipeline through central Maine, is being sold to the subsidiary of a Colorado-based company.

The Kennebec Journal in Augusta said the sale agreement between Portland-based Kennebec Valley Gas Co. and Summit Natural Gas of Maine Inc. has been submitted to the Maine Public Utilities Commission for approval. Summit is a subsidiary of Summit Utilities of Colorado.

Terms of the sale are not being disclosed.

Kennebec Valley Gas has proposed a nearly 80-mile pipeline from Madison to Richmond in central Maine. Officials of towns along the route have been told that the project under Summit will be more extensive than originally proposed, with service being offered to more residential customers in addition to commercial users.