W. Va. Code § 22-8-3: Oil of 35 degrees Baume at 60 degrees Fahrenheit; inspection, grading and measurement; receipt; deduction for waste.

All petroleum of a gravity of thirty-five degrees Baume or under, at a temperature of sixty degrees Fahrenheit, offered for transportation by means of pipeline or lines, shall, before the same is transported, as provided by section two of this article, be inspected, graded and measured at the expense of the pipeline company, and the company accepting the same for transportation shall give to the owner thereof a receipt stating therein the number of barrels or gallons so received, and the grade, gravity and measurement thereof, and within a reasonable time thereafter, upon demand of the owner or the owner's assigns, shall deliver to the owner or the owner's assigns at the point of delivery a like quantity and grade or gravity of petroleum in merchantable condition as specified in such receipt; except that the company may deduct for waste one percent of the amount of petroleum specified in such receipt.