Williams Companies Inc. (NYSE: WMB) completed a public offering of two groups of senior notes for $1.9 billion in net proceeds, the company said June 24.

It had offered $1.25 billion of its 4.55% notes due 2024, and $650 million of its 5.75% notes due 2044, the company said. They were priced at 99.738% and 99.773% of par, the company added.

Net proceeds will support part of Williams’ acquisition of Access Midstream Partners LP (NYSE: ACMP)—specifically, 50% of the general partner interest and 55.1 million limited partner units—the company said. The limited partner units are held by certain funds of Global Infrastructure Partners, Williams added.

Barclays Plc (NYSE: BCS), Citigroup Inc. (NYSE: C) and UBS Investment Bank were joint book-running managers, Williams said.

Tulsa, Okla.-based Williams Companies Inc. is a North America-focused midstream company.