Money continues to pour into the midstream, at least if recent debt and equity announcements are any indication. Companies accumulated billions of dollars during the past month through a series of public offerings, credit facilities and note issuances.

For starters, ONEOK Partners LP priced a $1.5-billion senior notes offering in mid-September. The issuance consists of $425 million of five-year, 3.2% senior notes; $425 million of 10-year, 5% senior notes; and $400 million of 30-year, 6.2% senior notes. Net proceeds are expected to be $1.24 billion. ONEOK says it plans to use proceeds to repay debt and for general partnership purposes.

ONEOK also announced plans to invest about $440 million in the natural gas liquids-rich area in Wyoming’s Powder River basin. This includes ONEOK’s $305-million purchase of a 50 million cubic feet per-day Sage Creek gas processing plant and related infrastructure in western Converse and Campbell counties. ONEOK will invest the remaining $135 million to upgrade and construct gas gathering and processing related infrastructure, NGL gathering pipelines and well connections.

“The Sage Creek plant gives ONEOK additional natural gas gathering and processing capacity in a region where producers are actively drilling that has significant long-term growth potential,” said Terry K. Spencer, president of ONEOK Partners. “This acquisition will add assets located in and around our operating footprint that can be integrated into our system and used as a platform for future growth opportunities.”

Elsewhere, Access Midstream Partners LP priced a public offering of $400 million 5.875% senior notes due 2021. The company said it would use proceeds for general partnership purposes, including funding working capital and repaying debt.

In the month’s largest debt announcement, Blue Racer Midstream LLC secured a five-year, $800-million credit facility, which can be expanded to $1 billion in the future. Blue Racer— a joint venture between Caiman Energy II LLC and Dominion Resources—is focused on developing midstream infrastructure in the Utica shale. Wells Fargo Securities LLC and RBS Securities Inc. acted as joint lead arrangers on the loan.

On the equity front, Rose Rock Midstream LP held a public offering of 4.75 million common units at $33.44 per unit. Underwriters were granted a 30-day option to purchase up to an additional 712,500 units.