GALVESTON — The thick, tarry oil that is drifting in Galveston Bay and washing up on local shorelines is both a popular fuel source and the byproduct of the oil refinery process.
The technical name for the substance is IFO-380, but it is commonly known as heavy fuel oil. On Tuesday, a General Land Office official said heavy fuel oil is what’s left in oil after other products — such as gasoline, diesel and kerosene — had been stripped away.
“It’s commonly referred to as bottom of the barrel stuff,” said Greg Pollack, deputy commissioner for the land office’s Oil Spill Prevention and Response division.
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