April 24 (Reuters) - Iraq's northern oil exports showed few concrete signs of an imminent restart after a month of standstill, as aspects of an agreement between Baghdad and the Kurdistan Regional Government (KRG) have yet to be resolved, according to four sources. Baghdad and Erbil, the capital of Iraq's semi-autonomous Kurdistan region, signed a temporary agreement on April 4 to restart northern oil exports. The KRG and Iraq's oil ministry did not respond to requests for comment. Iraq's lack of willingness to discuss these issues has frustrated Turkey, according to one source. Fields which are still running include Khurmala, which has reduced output from around 135,000 bpd to 100,000 bpd, according to a source familiar with field operations.

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