RSP Permian Inc. (NYSE: RSPP) upsized an equity offering that it launched to fund a portion of its $2.4 billion acquisition in the Delaware Basin, the company said Oct. 13.

The Dallas-based company priced the public offering of 22 million shares of its common stock, upsized from 20 million shares, at $39.75 per share. The offering includes a 3.3 million share greenshoe option.

RSP expects total gross proceeds of about $874.5 million from the offering, which will be used to fund a portion of its acquisition of Silver Hill Energy Partners LLC. If the acquisition doesn't occur, RSP will use the proceeds for general corporate purposes, including funding its 2017 capital budget.

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The offering is expected to close Oct. 18, subject to customary closing conditions. Barclays Capital Inc. and RBC Capital Markets LLC are lead joint book-running managers for the offering.