Adds detail on the planned maintenance on CPC pipeline in paragraphs 4-5

MOSCOW, May 12 (Reuters) - Black Sea CPC Blend oil exports via the Caspian Pipeline Consortium (CPC) system were set at 1.5 million barrels per day (or about 6 million metric tons) for May, down from some 1.6 million barrels per day in April, two industry sources said.

Kazakhstan's energy ministry said on Tuesday it is committed to the OPEC+ agreement and will continue to fulfil all its obligations in order to ensure the stability of the global energy market.

On a daily basis, CPC Blend oil exports in May could fall by about 6% compared to April, Reuters calculations showed. April is one day shorter than May.

A decline in CPC Blend oil exports in May is expected due to planned maintenance on the pipeline in the end of the month, which will last for three days, the sources said.

CPC previously said it planned maintenance works on the pipeline in the end of May, so that Kropotkinskaya pumping station hit by Ukrainian drones in February this year is back to operation after repairs.

CPC does not comment on monthly crude shipments through its system.

The CPC pipeline, which carries more than 80% of all Kazakh oil exports, connects the Tengiz field in western Kazakhstan and a number of others with the CPC marine terminal in Yuzhnaya Ozereyevka near Novorossiisk port.

The shareholders of the CPC are Russia, which owns 31%, Kazakhstan (20.75%), U.S. oil major Chevron CVX.N (15%), ExxonMobil subsidiary Mobil Caspian Pipeline Company (7.5%) and other companies.

(Reporting by Reuters; Editing by Susan Fenton and Mark Porter)