Williams, Tulsa, Okla., (NYSE: WMB) says it has completed a $600 million private offering of senior notes.

The notes, which are due in 2020, were priced with an 8.75% coupon and at 99.159% to par with a yield to investors of 8.875%.

Williams says it will use the net proceeds for general corporate purposes, including improving company liquidity and funding capital expenditures.

Williams' operations are concentrated in the Pacific Northwest, Rocky Mountains, Gulf Coast and Eastern Seaboard.