RPC Inc. (RES): Provides a range of oilfield services and equipment to the oil and gas companies primarily in the United States. RSI(14) at 29.46. TTM gross margin at 45.15% vs. industry average at 35.33%. TTM operating margin at 26.85% vs. industry average at 18.36%. TTM pretax margin at 26.46% vs. industry average at 16.28%.