据普氏能源资讯2019年5月9日伦敦报道，根据标准普尔普氏全球能源资讯日前进行的一次调查结果显示，经过4个月的下滑，石油市场大幅收紧，欧佩克4月份的原油总产量较3月份相对稳定，仅上升3万桶/天，升至3026万桶/天。
然而，调查发现，欧佩克14个成员国的各个成员国的产量水平逐月变化，
调查显示，迄今该组织最大的产油国沙特阿拉伯，因继续表现出相当大的克制以提振油价，4月石油日产量为982万桶，为四年多来最低，远低于欧佩克/非欧佩克协议规定的量。郝芬 编译自 Platts
原文如下:
OPEC pumps 30.26 mil b/d in April, as sanctions-hit Iran's output falls: Platts survey
After four months of decline, tightening the oil market considerably, OPEC's collective crude oil production in April held relatively steady from March, rising just 30,000 b/d to 30.26 million b/d, according to an S&P Global Platts survey.
Saudi Arabia, the organization's largest producer by far, held its April output at 9.82 million b/d, the lowest in over four years and well below its quota under an OPEC/non-OPEC accord, according to the survey, as it continues to demonstrate considerable restraint in hopes of bolstering oil prices.