OPEC will hold informal talks at an energy conference in September, the cartel’s president said Monday, as oil-producing nations worry over a recent downturn in the crude market. The Organization of the Petroleum Exporting Countries is always discussing ways to stabilize the market, said Qatar’s energy minister, Mohammed bin Saleh al-Sada, who is serving as the 14-nation oil cartel’s president this year. “OPEC continues to monitor developments closely, and is in constant deliberations with all member states on ways and means to help restore stability and order to the oil market,” Mr. Sada said. The OPEC president sounded a positive note about the crude-oil market, saying demand was expected to be strong in the second half of 2016, while the global supply of petroleum would weaken. “Expectation of higher crude oil demand in the third and fourth quarters of 2016, coupled with decrease in availability, is leading the analysts […]