Oil prices went up on Tuesday partly because of a report showing that monthly oil output from seven major U.S. shale plays is predicted to decrease by 91,000 barrels a day next month, according to a monthly report from the Energy Information Administration released Monday afternoon.

The weekly EIA U.S. inventory data report is due later Tuesday and on Wednesday morning. Traders also awaited a spate of monthly reports due out this week, starting later Tuesday that will offer oil-price outlooks and demand forecasts, MarketWatch reports. Shale-oil production has been the key driver of U.S. output growth in recent years, and surging U.S. supplies helped send oil prices plunging last year.

“I suspect that not too many people saw the report on Monday and it’s getting wider attention today,” oil prices newssaid Colin Cieszynski, chief market strategist at CMC Markets. “I think this could be a suckers’ rally because [West Texas Intermediate crude] still can’t retake $60 and U.S. production declines are being offset by even bigger increases in Saudi Arabia, Iraq and elsewhere — with Iran to come,” he said.

If Iran is able to reach a deal with other countries over its nuclear program, sanctions on Iran will probably be lifted, and the country has said it’s ready to boost oil production.

Upcoming Reports That Affect Oil Prices:

Tuesday, June 9, 2015:

The American Petroleum Institute will release its weekly U.S. oil inventory data.

EIA is scheduled to release its monthly short-term energy outlook.

Wednesday, June 10:

OPEC will issue its oil report

EIA will release its weekly inventory report (analysts predict a decline of 1.6 million barrels)

Thursday, June 11:

The International Energy Agency’s report comes out