List of reporting marks: S
S
SA - Savannah and Atlanta Railroad; Central of Georgia RailroadSAL - Seaboard Air Line Railway; Seaboard System Railroad; CSX TransportationSAMX - Cargill, Inc. SAN - Sandersville RailroadSANX - San Angelo Tank Car LineSAPT - Savannah Port Terminal RailroadSATX - City Public Service Board of San AntonioSAUX - Sauvage Gas CompanySAWX - Sawco, Inc.SAZX - Saz Transportation CorporationSB - South Buffalo RailwaySBC - Ferrocarril Sonora Baja CaliforniaSBD - Seaboard System Railroad; CSX TransportationSBGX - Industry Financial CorporationSBIX - Standard Brands, Inc.SBK - South Brooklyn RailwaySBLN - Sterling Belt Line RailwaySBLX - Sunbelt/Chlor/Alkali PartnershipSBM - St. Louis, Brownsville and MexicoSBVR - South Branch Valley RailroadSC - Sumter and Choctaw RailwaySCAX - Southern California Regional Rail Authority SCBG - Santa Cruz, Big Trees and Pacific RailwaySCCX - Shell Oil CompanySCEX - Southern California EdisonSCFE - South Central Florida RailroadSCFS - Straits Car Ferry Service CorporationSCGX - Schuler Grain Company; Eades CommoditiesSCHX - Stauffer Chemical CompanySCJX - Gulf Oil Products Company; Chevron Phillips Chemical CompanySCL - Seaboard Coast Line Railroad; Seaboard System Railroad; CSX TransportationSCLX - Spielman & Caddell Leasing SCM - Strouds Creek and Muddlety RailroadSCMX - Shell Oil CompanySCOX - Scoular Bishop Grain CompanySCPX - Shell Oil CompanySCR - SCRSCRW - Seaway Commercial RailwaySCST - Seaboard Transportation Company SCT - Sioux City Terminal RailwaySCTR - South Central Tennessee RailroadSCWX - South Carolina Public Service AuthoritySCXF - South Central Florida Express, Inc.SCXY - St. Croix Valley RailroadSCYX - Farmers Cooperative Association of York, NebraskaSDA - San Diego and Arizona RailwaySDAE - San Diego and Arizona Eastern RailwaySDCX - AMAX Chemical CorporationSDER - San Diego Electric RailwaySDEX - Swindell-Dressler Energy Supply CompanySDIV - San Diego and Imperial Valley Railroad SDIY - San Diego and Imperial Valley RailroadSDNX - North County Transit DistrictSDPX - South Dakota Soybeen ProcessorsSDRX - Sounder commuter railSE - Ferrocarriles Unidos del SuresteSECX - South-East Coal CompanySEIX - Seimax Gas CorporationSEMX - Seminole Electric CooperativeSEPA - SEPTASEPX - Southwestern Electric Power CompanySERA - Sierra RailroadSERX - ACF Industries SFIX - System Fuels, Inc.SFLC - Atchison, Topeka and Santa Fe Railway; BNSF RailwaySFLR - Shore Fast Line RailroadSFPP - Spruce Fall Power and PaperSFQ - Atchison, Topeka and Santa Fe Railway; BNSF Railway End Of Train DevicesSFRB - Atchison, Topeka and Santa Fe Railway SFRC - Atchison, Topeka and Santa Fe Railway SFRD - Atchison, Topeka and Santa Fe Railway SFRE - Atchison, Topeka and Santa Fe Railway SFRP - Atchison, Topeka and Santa Fe Railway SFSR - Santa Fe Southern RailwaySFSX - San Francisco Transportation Services CompanySFTX - Continental Tank Car CorporationSGAX - SGA Leasing CompanySGCX - Sungas Corporation of FloridaSGIX - LPG Transportation, Inc.SGLR - Seminole Gulf RailwaySH - Steelton and Highspire RailroadSHLX - Procor Ltd.SHPX - American Industrial Transport, formerly ACF Leasing/Shippers Car Line DivisionSHQX - American Industrial TransportSHRX - Kansas City Railroad MuseumSI - Spokane International Railroad; Union Pacific RailroadSIGX - Southern Indiana Gas and Electric CompanySIMX - Sierra Bag CompanySIND - Southern Indiana RailwaySIRC - Staten Island RailwaySIRR - Southern Industrial RailroadSIRX - Southern Illinois Railcar CorporationSJFX - Western Fuels & Asphalt Supply, Inc.; GLNX CorporationSJMX - St. Joe Minerals CorporationSJRT - St. Johns River TerminalSJT - St. Joseph Terminal RailroadSJVR - San Joaquin Valley RailroadSKCX - ARCO Chemical CompanySKNX - Saskatchewan Grain Car CorporationSKOL - South Kansas and Oklahoma RailroadSKPX - Saskatchewan Grain Car CorporationSKSX - Safety-Kleen Systems, Inc.SKTX - Ski TrainSL - Salt Lake City Southern RailroadSLAW - St. Lawrence RailroadSLAX - St. Lawrence Starch Company, Ltd.SLC - San Luis Central RailroadSLGG - Sidney and Lowe RailroadSLGW - Salt Lake, Garfield and Western RailwaySLH - Sugarloaf and Hazelton RailroadSLOX - Selox, Inc.SLR - St. Lawrence and Atlantic RailroadSLRG - San Luis and Rio Grande RailroadSLRX - Southern Locomotive & RailcarSLSF - St. Louis - San Francisco Railway ; Burlington Northern RailroadSLWC - Stillwater Central RailroadSLTX - Slade Transport, Inc.SM - St. Mary's RailroadSMA - San Manuel Arizona RailroadSMCX - San Miguel Electric CooperativeSMEX - South Mississippi Electric Power AssociationSMMX - St. Mary's Cement CompanySMPX - Stone Mountain Scenic RailroadSMRR - Sisseton Milbank Railroad SMNX - Solvay Minerals, Inc.SMRX - Southeastern Railway MuseumSMV - Santa Maria Valley RailroadSN - Sacramento Northern RailwaySNBL - Sioux City and New Orleans Barge LineSNCT - Seattle and North Coast RailroadSNFX - IND/AG Chemicals, Inc.SNHX - IND/AG Chemicals, Inc.SNJX - New Jersey Transit RiverLINE work train SOEX - Shell Oil CompanySOGX - Diamond Shamrock Chemicals CompanySOIX - Sand Seed Service, Inc.SOLX - Solano Rail Car CompanySOM - Somerset RailroadSOO - Soo Line Railroad; Canadian Pacific RailwaySOPR - South Pierce RailroadSOR - Southern Ontario RailwaySOU - Southern Railway; Norfolk Southern RailwaySP - Southern Pacific Railroad; Union Pacific RailroadSPAX - SEPTASPCX - SPC Rail Group LLCSPEG - Spencerville and Elgin RailroadSPFE - Pacific Fruit Express; Southern Pacific Railroad; Union Pacific RailroadSPGX - Suburban PropaneSPMW - Southern Pacific Railroad; Union Pacific Railroad SPQ - Southern Pacific Railroad; Union Pacific Railroad End Of Train DevicesSPS - Spokane, Portland and Seattle Railway; Burlington Northern RailroadSPSX - Progress Rail ServicesSPUD - St. Paul Union Depot CompanySQVR - Sequatchie Valley RailroadSRAX - Southern Rail Associates, Inc.SRC - Strasburg RailroadSRCX - Sid Richardson Carbon CompanySRIX - Southern Region Industrial Realty, Inc.; Southwest Rail Industries, Inc.SRL - Swift Refrigerator Lines SRLX - General American Transportation Corporation SRN - Sabine River and Northern RailroadSROX - United States Department of Energy SRPX - Salt River Project Agricultural Improvement and Power DistrictSRRX - Star Railroad EquipmentSRY - Southern Railway of British ColumbiaSS - Sand Springs RailwaySSAM - Sault Ste. Marie Bridge Company SSDK - Savannah State Docks RailroadSSGX - McMaster Grain CompanySSH - South Shore RailroadSSR - S&S ShortlineSSEX - Radius Recycling SSIX - Itel CorporationSSW - St. Louis Southwestern Railway ; Southern Pacific Railroad; Union Pacific RailroadST - Springfield Terminal Railway; Boston and Maine Railroad; Pan Am RailwaysSTAX - Stauffer Chemical Company; OCI Chemical CorporationSTC - Simpson Timber CompanySTCX - Sterling China CompanySTE - Stockton Terminal and Eastern RailroadSTER - St. Thomas and Eastern RailwaySTEX - Sterling Chemicals, Inc.STLE - St. Louis & Evansville Railroad Co.STLX - A. E. StaleySTMA - St. Maries River RailroadSTMX - A. E. StaleySTOX - ACF IndustriesSTRC - Stuart Chemical TransportationSTRT - Stewartstown RailroadSTRX - St. Regis Paper CompanySTSX - A. E. StaleySTTX - Trailer Train CompanySTWX - Struthers Wells CorporationSULX - SultranSUN - Sunset RailwaySUNX - Sun Refining and Marketing CompanySUR - State University RailroadSVGX - Savage servicesSVI - Southern Railway of Vancouver Island, E and N RailwaySVIL - Saltville RailroadSW - Southwestern RailroadSWCX - Estech, Inc.SWFX - Southwest Forest Industries, Inc.SWGX - Southwest Georgia Railroad Excursion Authority/SAM Shortline Excursion TrainSWIX - Stonewall Industries LLCSWLX - Essel CorporationSWRX - Richmond Rail Equipment Leasing CompanySWYX - Stauffer Chemical Company of Wyoming