BAGHDAD, Jan. 10 (UPI) -- The leader of the Iraqi Parliament's Energy Committee has accused Iraq's Kurdish leadership and the national ministerial council of holding up a draft oil law.

Abdul Hadi al-Hassani also said the federal government should keep up the pressure against the Kurdistan Regional Government for moving forward unilaterally on developing its oil sector in the north.

"The Parliament awaits for the government's approval of any of the draft law's four copies," Hassani told the Voices of Iraq news agency. He blamed the holdup on politics.

The draft law has been under negotiation for more than a year and is stuck in disputes between the Kurds, who want decentralized control over the oil sector, and Iraqi Arab leaders who want the national government in charge.

The law has seen many ups and downs. It was approved last February. Then a dispute broke out over which oil fields would be under the central government's control. It's also been altered a number of times -- so much that two of the three original authors oppose it -- and there are now more than one version.