ONEOK Partners LP (NYSE: OKS) expanded its lender group and increased its revolving credit facility commitments, the company said March 10.

The commitments increased to $2.4 billion from $1.7 billion.

The facility expires in January 2019.

The lenders are a syndicate of 20 banks led by Citibank, Bank of America, Barclays, JPMorgan Chase, Morgan Stanley, The Royal Bank of Scotland, UBS and Wells Fargo Bank.

Derek S. Reiners, senior vice president, CFO and treasurer, said that the increase will allow higher liquidity and more financial flexibility. The money will support about $1.2 in 2015 capex, the commercial paper program, working capital and other general partnership purposes, he added.

Tulsa, Okla.-based ONEOK Partners LP is a domestic-focused midstream MLP.