MPLX LP filed a petition with the Federal Energy Regulatory Commission (FERC) on Feb. 15 seeking permission to expand the 230,000 barrel per day (Mbbl/d) Ozark crude pipeline.

MPLX expects the commission to act by May 10, so that the additional capacity on the pipeline, running from Cushing, Okla., to Wood River, Ill., could be in service in the second quarter of 2018.

The expansion will increase the total capacity by 115 Mbbl/d to 345 Mbbl/d, the filing said. In 2016, there were 19 active shippers on the pipeline.

On Feb. 13, an MPLX subsidiary agreed to purchase the Ozark Pipeline, currently owned by Enbridge Inc., for about $220 million.

MPLX is an MLP formed in 2012 by Marathon Petroleum Corp. (NYSE: MPC), according to its website. In 2015, it bought MarkWest Energy Partners, a deal that made it the fourth-largest MLP by market value in the U.S.