LONDON - OPEC on Thursday cut its forecast for growth in world oil demand in 2022 for a second straight month, citing the impact of Russia's invasion of Ukraine, rising inflation and the resurgence of the Omicron coronavirus variant in China.

In a monthly report, the Organization of the Petroleum Exporting Countries (OPEC) said world demand would rise by 3.36 million barrels per day (bpd) in 2022, down 310,000 bpd from its previous forecast.

The Ukraine war sent oil prices briefly above $139 a barrel in March, the highest since 2008, worsening inflationary pressures. OPEC has cited suggestions that China, with strict COVID lockdowns, is facing its biggest demand shock since 2020 when oil use plunged.

"Demand in 2022 is expected to be impacted by ongoing geopolitical developments in Eastern Europe, as well as COVID-19 pandemic restrictions," OPEC said in the report.

Nonetheless, OPEC still expects world consumption to surpass the 100 million bpd mark in the third quarter, and for the 2022 annual average to just exceed the pre-pandemic 2019 rate.

OPEC and its allies which include Russia, known as OPEC+, are unwinding record output cuts put in place during the worst of the pandemic in 2020 and have rebuffed Western pressure to raise output at a faster pace.

At its last meeting, OPEC+ swerved the Ukraine crisis and stuck to a previously agreed plan to boost its monthly output target by 432,000 bpd in June.

OPEC+ has been undershooting the increases due to underinvestment in oilfields in some OPEC members and, more recently, losses in Russian output.

The report showed OPEC output in April rose by 153,000 bpd to 28.65 million bpd, lagging the 254,000 bpd rise that OPEC is allowed under the OPEC+ deal.

(Editing by Mark Potter)