Oneok Inc., Tulsa, Okla., hired Merrill Lynch as consultant for its...

Oneok Inc., Tulsa, Okla., hired Merrill Lynch as consultant for its $550 million pension plan, said John Manning, director of employee benefits. Previous consultant Morgan Stanley was terminated due to personnel changes, he said. There are no plans for an asset allocation study or any manager changes, he said. The plan's asset allocation is 60% equity and 40% fixed income.