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Hart Energy's latest listing of drill bit records contains data for different types and sizes of bits in three categories - single run, cumulative and rate of penetration (ROP). Hart Energy is the single source for this data, which has been verified by bit run sheets from the drilling contractors and operators.
Each year Hart Energy meets with the drill bit manufacturers to update these records. The yearly updates are posted in March with the latest records featured in the March issue of E&P magazine.