Ohio Police & Fire Pension Fund, Columbus, committed up to $30 million to Riverstone Global Energy and Power Fund VI, a global natural resources private equity fund, spokesman David Graham said in an e-mail.
It is the $14.9 billion pension fund's first commitment to a fund managed by Riverstone Holdings.
Private equity consultant TorreyCove Capital Partners assisted.
Separately, the pension fund placed Columbia Threadneedle Investments, which manages a $438 million active domestic small-cap equity portfolio, on watch for performance. The pension fund will review the manager quarterly, Mr. Graham said.
Columbia Threadneedle spokesman Carlos Melville declined to comment.
