June 3 (Reuters) - U.S. pipeline operator ONEOK ( OKE )

said on Tuesday that it had bought the remaining stake in

Delaware Basin JV from NGP XI Midstream Holdings in a

cash-and-stock deal valued at $940 million.

By acquiring the remaining 49.9% interest, ONEOK ( OKE ) has gained

sole ownership of the basin, which operates natural gas

gathering and processing facilities in West Texas and New

Mexico's Delaware Basin, with a total processing capacity

exceeding 700 million cubic feet per day.

Over the past two years, the pipeline operator has

diversified its portfolio with acquisitions, including a Gulf

Coast NGL pipeline system from Easton Energy and the purchases

of Medallion Midstream and EnLink Midstream.

These moves are part of a broader effort to boost its

presence in the Permian Basin amid growing consolidation in the

U.S. energy sector.

The company said that the deal comprises $530 million in

cash and $410 million in ONEOK ( OKE ) common stock.

ONEOK ( OKE ) operates a 60,000-mile pipeline network that

transports natural gas, natural gas liquids, refined products,

and crude oil.