Oil edges up in weekly rebound on forecasts for tight supplies

* Weekly gains for benchmarks after 2-3 weeks of losses

* Crude posted steep loss at start of week on virus fears

* Market to remain tight despite OPEC+ supply boost -analysts

* U.S. oil rigs rise for 4th week but drilling recovery modest (Adds Baker Hughes data, updates to settlement)

By Devika Krishna Kumar

NEW YORK, July 23 (Reuters) - Oil prices edged higher on Friday and for the week after a strong recovery from Monday's steep slide, underpinned by expectations that supply will remain tight through the year.

The price of oil and other riskier assets tumbled at the start of the week on concern over the impact on the economy and crude demand from surging cases of the COVID-19 Delta variant in the United States, Britain, Japan and elsewhere.

Brent crude ended the session up 31 cents, or 0.4%, at $74.10 a barrel after jumping 2.2% on Thursday. U.S. West Texas Intermediate (WTI) crude settled up 16 cents, or 0.2%, at $72.07, after gaining 2.3% on Thursday.

For the week, Brent gained 0.7% after declining for three consecutive weeks, while WTI rose 0.4% after falling for two weeks.

Both benchmarks slumped about 7% on Monday but pared those losses, with investors expecting demand to stay strong and the market to receive support from falling oil stockpiles and rising vaccination rates.

"The demand concerns proved to be exaggerated, which is why oil prices have since recovered. Despite the expansion in oil supply, the oil market will remain slightly undersupplied until the end of the year," Commerzbank said in a note.

Demand growth is expected to outpace supply after Sunday's deal between the Organization of the Petroleum Exporting Countries (OPEC) and allies, collectively known as OPEC+, to add back 400,000 barrels per day (bpd) each month from August.

ANZ Research analysts said in a report that the market was starting to sense the OPEC+ increase will not be enough to keep the market balanced and inventories in the United States and across OECD countries would continue to fall.

U.S. crude inventories rose by 2.1 million barrels last week, but stocks at the Cushing, Oklahoma delivery point for WTI hit their lowest since January 2020.

U.S. oil rigs rose seven to 387 this week, their highest since April 2020, energy services firm Baker Hughes Co (BKR) said. But the recovery in drilling has been modest as producers favor spending austerity.

"We still think the OPEC+ driven dip in crude and distillate prices is a buying opportunity and project Brent will hit $100 a barrel next year, with distillates tagging along for the ride," Bank of America said in a note. (Additional reporting by Alex Lawler in London, Sonali Paul in Melbourne, Roslan Khasawneh in Singapore and Scott DiSavino in New York; Editing by Marguerita Choy and Andrea Ricci)

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