Private equity firm First Reserve Corp. will acquire Ameriforge Group Inc. from Post Oak Companies LP for an undisclosed amount.

Houston-based Ameriforge manufactures highly-engineered products for the oil and gas, midstream, downstream, power generation, aerospace, transportation and industrial markets.

First Reserve, headquartered in Greenwich, Conn., has also invested in 9Ren Group, Cobalt International Energy and Glencore International AG. The firm focuses on investments in the energy sector. 

Post Oak is an affiliate of Houston private equity firm Tanglewood Investments Inc.

Paul Hastings LLP is representing Deutsche Bank, Morgan Stanley, RBC and UBS in connection with First Reserve's financing for the transaction. 

For more on the energy sector, see "Fracking Fuels Energy Deals."

Energy industry