EX-21.1 4 d04190exv21w1.txt SUBSIDIARIES OF THE COMPANY . . . EXHIBIT 21.1 SUPERIOR ENERGY SERVICES, INC. LIST OF SUBSIDIARIES
STATE OF JURISDICTION OF NAME INCORPORATION OR ORGANIZATION 1105 Peters Road, L.L.C. Louisiana Ace Rental Tools, L.L.C. Louisiana Blowout Tools, Inc. Texas Concentric Pipe and Tool Rentals, L.L.C. Louisiana Connection Technology, L.L.C. Louisiana Drilling Logistics, L.L.C. Louisiana Environmental Treatment Team, L.L.C. Louisiana F & F Wireline Services, L.L.C. Louisiana Fastorq, L.L.C. Louisiana H.B Rentals, L.C. Louisiana Imperial Snubbing Services, Ltd. Trinidad/Tobago International Snubbing Services, L.L.C. Louisiana J.R.B. Consultants, Inc. Texas Lamb Energy Services, L.L.C. Delaware Non-Magnetic Rental Tools, L.L.C. Louisiana Oil Stop, L.L.C. Louisiana Production Management Industries, L.L.C. Louisiana SE Finance LP Delaware SEGEN LLC Delaware SELIM LLC Delaware SEMSE, L.L.C. Louisiana SEMO, L.L.C. Louisiana SESI, L.L.C Delaware
SPN Resources, LLC Louisiana Southeast Australian Services Pty., Ltd. Australia Stabil Drill Specialties, L.L.C. Louisiana Stabil Drill (UK) Limited Scotland Sub-Surface Tools, L.L.C. Louisiana Superior Energy Sevices de Mexico, S. de R. L. de C.V. Mexico Superior Energy de Venezuela, C.A. Venezuela Superior Energy Liftboats, L.L.C. Louisiana Superior Energy Services, L.L.C. Louisiana Superior Energy Staffing de Mexico, S. de R.L. de C.V. Mexico Technical Limit Drillstrings, Inc. Louisiana Tong Specialty, L.L.C. Louisiana Wild Well Control, Inc. Texas Workstrings, L.L.C. Louisiana