A month after seizing a controlling stake, ONEOK Inc.

is completing its takeover of EnLink Midstream LLC, agreeing to pay $4.3 billion for the remaining publicly held shares.

The all-cash transaction will give the Tulsa-based energy infrastructure giant full ownership of EnLink’s Permian Basin midstream network, solidifying its footprint in the most prolific U.S.

EnLink provides natural gas, natural gas liquids and crude oil gathering, processing, and transportation services to producers across the Permian Basin.

The company’s assets include thousands of miles of pipelines and nine processing plants with a combined capacity of roughly 2.8 billion cubic feet, linking wellheads to major market hubs and Gulf Coast fractionation facilities.

The deal continues a wave of consolidation in the midstream sector as operators race to build integrated systems from the wellhead to downstream outlets.

ONEOK already operated one of the nation’s largest natural gas liquids pipeline networks and, with EnLink’s assets, will significantly expand its reach in the Delaware and Midland sub-basins of the Permian.

The buyout of the public float will make EnLink a wholly owned subsidiary upon completion.

ONEOK purchased its controlling interest from private equity firm EnCap Flatrock Midstream in April, giving it the platform to move forward with the full acquisition.

The Permian Basin accounts for nearly half of U.S.

oil production, and EnLink’s systems are integral to moving volumes to market.

By absorbing the remaining stake, ONEOK ensures it captures the full economics of those flows.