July 26 (Reuters) - U.S. refiner Valero Energy (NYSE:VLO) Corp's VLO.N quarterly profit fell nearly 40 percent due to lower refining margins as elevated gasoline stockpiles offset healthy demand.
Net income attributable to shareholders fell to $814 million, or $1.73 per share, in the second quarter ended June 30 from $1.35 billion, or $2.66 per share, a year earlier.
Operating revenue fell 22 percent to $19.58 billion.