The first phase of the Nesson crude and produced water gathering system is operational, serving Bakken wells in Williams and Mountrail counties, N.D., Enable Midstream Partners LP said May 21.

Construction of the first segment of the Nesson system began in July 2014. Nesson serves XTO Energy Inc. and has a maximum throughput of 1,800 barrels per day (bbl/d). On May 7, crude oil was flowing into the downstream delivery pipeline system.

Phase two construction began in April 2015 and is expected to finish in 2015’s fourth quarter. Maximum throughput for the entire system is expected to be 30Mbbl/d. There will be more than 160 miles of pipeline and 69 origin points to gather crude oil and produced water.

“Our customers continue to have a need for the delivery of energy to key markets,” said president and CEO Lynn Bourdon. “We have a proven track record of effectively and efficiently deploying capital to meet that need.”

Enable Midstream Partners LP is based in Oklahoma City.