Crude oil production in OPEC inched up by a modest 30,000 bpd to 30.26 million bpd last month, a survey by S&P Global Platts suggested, after four months of steady declines. While production in Iran declined as a result of U.S. sanctions, as did output in Angola , which is struggling to boost investment in its oil and gas industry, recoveries elsewhere propped up the total. Among the risers in the oil cartel were Nigeria, Iraq, and Libya. Surprisingly, even production in Venezuela stabilized last month, the S&P Global Platts revealed. The organization’s largest producer, Saudi Arabia, kept its production rate stable in April, the survey also found, at an average 9.82 million bpd. Reports from earlier this month had it that the Kingdom planned to increase its oil production in June but not exports as local demand would soak up the additional output without it affecting international prices. […]