OKLAHOMA CITY (AP) - The Oklahoma lawmaker who spearheaded major changes to the state's pension systems last session is leading a legislative effort to take a close look at the systems.

Rep. Randy McDaniel took testimony Thursday from officials with the state's six pension systems during a meeting of the House Pension Oversight Committee.

The Oklahoma City Republican says the state's major pension plans currently have $21.5 billion in assets, an increase of more than $3.5 billion in the past year, because of healthy investment returns.

The head of the Oklahoma Teachers' Retirement System reported last week the system's unfunded liability dropped by nearly $3 billion because of recent changes approved by the Legislature, including a requirement that cost-of-living adjustments be adequately funded.

McDaniel says he plans to push for additional changes next year.