How does the natural gas industry define 'lost and unaccounted for' (LAUF) gas?
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A
Gas that is stolen from the pipeline by unauthorized users
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B
The difference between gas injected into the distribution system and gas metered to customers, representing leaks, measurement errors, and unbilled uses
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C
Gas that evaporates from storage tanks during seasonal cycling
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D
Gas consumed in utility operations that is not billed to customers