As of 04/26/2018OP_NO OP_NAME GathCode003125 ABRAXAS PETROLEUM CORPORATION ABPEC003531 ACE GATHERING, INC. ACEGA003645 AC EXPLORATION, LLC ACEXP003599 ACOCK/ANAQUA OPERATING CO., LP ACOCC003654 ACTION OIL SERVICE, INC. ACTIO000194 A.C.T. OPERATING COMPANY ACTOC008555 AETHON ENERGY OPERATING LLC AEOLC008557 AETHON UNITED GAS LP AETHO010067 ALAMO PETROLEUM EXCHANGE ALAMP014315 ALLIED CRUDE PURCHASING, INC. ALCRP013305 ALLEGRO INVESTMENTS, INC. ALLEG015098 ALON USA, LP ALONU015154 ALPINE HIGH GATHERING LLC ALPHG015149 ALPINE HIGH PIPELINE LLC ALPHP015775 ALTITO GATHERING SYSTEMS, LLC ALTIG016810 AMARILLO NATURAL GAS, INC. AMANG018835 AMERICAN MIDSTR OFFSH (SEACR) LP AMEMI018731 AMERICAN MIDSTREAM PERMIAN, LLC AMEMP018535 AMERICAN MIDSTREAM (LAVACA), LLC AMERL019752 AMERICO ENERGY RESOURCES, LLC AMERR019971 AMID CRUDE TRUCKING LLC AMICR019972 AMID ENERGY PRODUCTS SUPPLY LLC AMIEN019975 AMID SILVER DOLLAR PIPELINE LLC AMISI018584 AMERICAN MIDSTREAM GAS SLTNS, LP AMMGS020463 AMPAK OIL COMPANY AMPAK020467 AMPLIFY ENERGY OPERATING LLC AMPEO020456 AMP ETX GATHERING, LLC AMPTX020538 AMX ENERGY, INC. AMXEI020548 ANADARKO ENERGY SERVICES COMPANY ANADE020536 ANADARKO GATHERING COMPANY LLC ANADL020528 ANADARKO E&P ONSHORE LLC ANADO020526 ANADARKO LONE CREEK GATH LLC ANALC022435 ANDERSON ENERGY CORPORATION ANDEE025639 ANRE GAS SYSTEMS, INC. ANREG025633 ANR PIPELINE COMPANY ANRPC027200 APACHE CORPORATION APACH028625 APPROACH OPERATING LLC APPOP028643 APPROVED OIL SERVICES, LC APPRO028627 APPROACH SERVICES, LLC APPRS028647 APTIAN GAS CORPORATION APTGC028734 ARCADIA OPERATING, LLC ARCAO030584 ARK-LA-TEX ENERGY, L.L.C. ARKLT030817 ARLEDGE GAS GATHERING, LP ARLED033515 ARROWHEAD GAS SERVICES, LLC ARROG036561 ATLANTIC RICHFIELD COMPANY ATLAN

036603 ATMOS ENERGY,WEST TEXAS DIVISION ATMEW036599 ATMOS PIPELINE - TEXAS ATMOP039136 AXIS ENERGY CORPORATION AXISE039747 AZURE SHELBY ASSETS, LLC AZSAL039675 AZTEC GAS, INC. AZTEC042327 BACHTELL OIL & GAS, LTD. BACHO047200 BALD EAGLE OPERATING INC. BALDO047150 BALCONES MINERALS CORP. BALMC049453 BARKER PRODUCTION CO., LP BARKP051295 BARNETT GATHERING COMPANY, LLC BARNE051298 BARNETT GATHERING, LLC BARNG053106 BARRETT BROTHERS OIL & GAS, INC. BARRE053974 BASA RESOURCES, INC. BASAR058851 BAYOU OPERATING COMPANY, INC. BAYOO058908 BBX OPERATING, L.L.C. BBXOP040190 B D PRODUCTION CO., INC. BDPRO061750 BEEHIVE OPERATING, LLC BEEHI062695 BELDING GAS CO., INC. BELDG064063 BELVAN PARTNERS, L.P. (I) BELVP068148 BERRY PETROLEUM COMPANY BERRY068468 BEXCO OPERATING, INC. BEXCO068596 BHP BILLITON PET(TXLA OP) CO BHPBP068594 BHP BILLITON PET (E F GATH)LLC BHPEF068595 BHP BILLITON PET (TX GATH), LLC BHPTX070370 BIG RUN PRODUCTION COMPANY BIGRP070439 BIG STAR CRUDE CO., LLC BIGSC072421 BIRTHRIGHT PIPELINE COMPANY,L.C. BIRTP072417 BIRTHRIGHT RESOURCES LC BIRTR072624 BKEP CRUDE, L.L.C. BKEPC072629 BKEP PIPELINE, L.L.C. BKEPI073059 BLACKBRUSH O & G, LLC BLABR073342 BLACKWELL EXP & DEVELOPMENT, LLC BLACW075773 BLM PIPELINE, INC. BLMPL076807 BLUEBIRD (TEX) PIPELINE, L.P. BLUBT076861 BLUESTONE NATURAL RES. II, LLC BLUES076832 BLUEBONNET GATHERING LLC BLUGA077542 BML, INC. B BMLIB077616 BOARDWALK FIELD SERVICES, LLC BOARD084097 BOWLES ENERGY, INC. BOWLE040798 BP AMERICA PRODUCTION COMPANY BPAPC085372 BP PRODUCTS NORTH AMERICA INC. BPPRN058828 BAZCO PETRO TRANS, TX DIV, LLC BPTDL088600 BRAMMER PETROLEUM, INC. BRAMP089911 BRAZOS PIPELINE CO., L.L.C. BRAZI089903 BRAZOS MIDSTREAM OPERATING, LLC BRAZM090732 BREITBURN OPERATING L.P. BREIT090870 BRG LONE STAR LTD. BRGLO

091157 BRIDGER TRANSPORTATION, LLC BRIDT092480 BRIDWELL OIL CO. BRIDW099955 BROWN, GEO. R PARTNERSHIP,LP,THE BROGE100263 BROWN, H.L. OPERATING, L.L.C. BROHL097353 BROOKSTON ENERGY, INC. BROKE101390 BROWN OIL & GAS CO. BROWN041524 BRP PIPELINE COMPANY, INC. BRPPL104242 BRUSHY CREEK MIDSTREAM LP BRUSH104257 BRYAN WOODBINE GATHERING, INC. BRYWO105010 BSR GAS MARKETING, LTD. BSRGM041867 BTA OIL PRODUCERS, LLC BTAOI105967 BUCKEYE DEV. & LOGISTICS II LLC BUCKD106406 BUFFCO PRODUCTION INC. BUFFC109333 BURLINGTON RESOURCES O & G CO LP BURLI109255 BURLESON PETROLEUM, INC. BURLP042191 BXP OPERATING, LLC BXOLC121211 C5 MIDSTREAM, LLC C5MID121700 CABOT OIL & GAS CORPORATION CABOG123603 CALGAS LLC CALGL126096 CALUMET SAN ANTONIO REFINING,LLC CALSA127345 CAMINO REAL GATHERING CO. L.L.C. CAMIN128575 CAMRICK GAS PROCESSING CO. LLC CAMRI128580 CAN'T COMPLAIN OPERATING CO. CAN'T130061 CAPITAN ENERGY, INCORPORATED CAPIT130457 CAPROCK PERMIAN CRUDE LLC CAPPE130461 CAPROCK PERMIAN PROCESSING LLC CAPPP130426 CAPITAL STAR OIL & GAS, INC. CAPSO140611 CARDINAL GATHERING SYSTEM, L.P. CARDI135401 CARRIZO OIL & GAS, INC. CARRI135810 CARRLAND OIL & GAS INC. CARRL135967 CARRUTH OIL & GAS, LLC CARRO139584 CASKIDS OPERATING COMPANY CASKO139861 CATARINA MIDSTREAM, LLC CATAR120023 CCI EAST TEXAS UPSTREAM LLC CCIEN170262 CONCORD CRUDE OIL MARKETING LLC CCOML141059 CENTERPOINT ENERGY ENTEX CENEE141067 CENTERPOINT ENERGY INTRA P/L,LLC CENEP141655 CENTURION PIPELINE L.P. CENPI189896 CREST ENGINEERING SERVICES,INC. CENSI141012 CENTANA INTRASTATE PIPELINE, LLC CENTN142221 CHADCO GAS COMPANY CHADC144401 CHANNA OPERATING, LLC CHANO144535 CHAPARRAL ENERGY, L.L.C. CHAPL146680 CHARTER PETROLEUM COMPANY CHARP146621 CHARRO OPERATING, L.L.C. CHARR147408 CHEROKEE GATHERING COMPANY, LLC CHERO147724 CHESAPEAKE ENERGY MKTG, L.L.C. CHESL

147862 CHEVRON MIDCONTINENT, L.P. CHEVM148113 CHEVRON U. S. A. INC. CHEVO148100 CHEVRON PIPE LINE COMPANY CHEVP148102 CHEYENNE ENERGY SERVICES LLC CHEYE149421 CHISOS, LTD. CHISO150491 CHOCTAW RESOURCES, INC. CHOCR153410 CICO OIL & GAS COMPANY CICOO153428 CIMA ENERGY, LTD. CIMAL153438 CIMAREX ENERGY CO. CIMAR153429 CIMAREX ENERGY CO. OF COLORADO CIMEC153474 CINCO NATURAL RESOURCES CORP. CINCO153510 CINNABAR OPERATING, LLC CINNA154235 CITATION OIL & GAS CORP. CITAO154250 CITGO PETROLEUM CORPORATION CITGO154648 CITY OF GRUVER CITGR154252 CITGO PIPELINE COMPANY CITPL154630 CITY OF BRADY CITYB154645 CITY OF DUMAS CITYD154647 CITY OF ELDORADO CITYE154650 CITY OF MCLEAN CITYM154750 CITY OF RISING STAR CITYR154770 CITY OF SUNRAY UTILITIES CITYS120500 CJW CORPORATION CJWCO158927 CLAY EXPLORATION, INC. CLAYI159345 CLAYTON WILLIAMS PIPELINE CORP CLAYT159500 CLEAR FORK, INCORPORATED CLEAR159640 CLEARFORK GAS CO. CLEFK161954 COASTLAND OPERATIONS, LLC COASO161671 COASTAL PLAINS ENERGY, INC. COASP164455 CODY ENERGY LLC CODYL166150 COG OPERATING LLC COGOP167017 COKINOS GAS TRANSMISSION COMPANY COKGT168342 COLLINGSWORTH GAS GATHERING, LLC COLLI169313 COLUMBUS ENERGY, LLC COLMB168955 COLORADO INTRSTATE GAS CO,L.L.C. COLRI170040 COMSTOCK OIL & GAS, LP COMLP169750 COMPASS OPERATING, L.L.C. COMPA172232 CONOCOPHILLIPS COMPANY CONPH173615 CONTINUUM CRUDE LOG SVCS, L.L.C. CONTC173749 CONTINENTAL OPERATING CO. CONTI173621 CONTINUUM MIDSTREAM, L.L.C. CONTM176359 COPANO FLD SERV/NORTH TEXAS, LLC COPFN176382 COPANO PROCESSING LLC COPPR176383 COPANO PIPELINES/UP GLFCOAST LLC COPPU176353 COPANO FLD SERV/SOUTH TEXAS LLC COPSS176384 COPANO PIPELINES/SOUTH TEXAS LLC COPST176348 COPANO FLD SER/UP GULF COAST LLC COPUG

179768 CORPUS CHRISTI GAS GATHERING,LP CORGG179361 CORONADO MIDSTREAM LLC COROM180197 CORUM PRODUCTION COMPANY CORUM182848 COVEY PARK RESOURCES LLC COVEP182847 COVEY PARK OPERATING LLC COVEY183246 COWTOWN PIPELINE PARTNERS L.P. COWTO189923 CRESTWOOD PERMIAN BASIN LLC CPBLC186313 CP ENERGY, L.L.C. CPENR186312 CP REFINING AND TRUCKING LLC CPREF186835 CRAWFORD HUGHES OPERATING CO. CRAWH165174 COFFEYVILLE RES CRUDE TRANS, LLC CRCTL189922 CRESTWOOD PANHANDLE PIPELINE LLC CREST190005 CRIMSON EXPLORATION OPER., INC. CRIME189977 CRIMSON ENERGY PARTNERS IV, LLC CRMEP190459 CROSS OIL REFINING & MKTG., INC. CROSO191554 CROWNQUEST OPERATING, LLC CROWQ191581 CRUDE MARKETING & TRANSP. INC. CRUMT121085 C. W. RESOURCES, INC. CWRES195844 CYCLONE EXPLORATION, INC. CYCLO197690 DALLAS PRODUCTION, INC. DALLP202491 DAVIS GAS PROCESSING, INC. DAVGP206061 DAVIS PETROLEUM CORP. DAVPE206081 DAVIS SOUTHERN OPERATING CO LLC DAVSO195927 DCP GUADALUPE PIPELINE, LLC DCPGU195926 DCP HINSHAW PIPELINE, LLC DCPHI195924 DCP INTRASTATE NETWORK, LLC DCPIN195928 DCP NGL SERVICES, LLC DCPNL195959 DCP OPERATING COMPANY, LP DCPOP195937 DCP TOLAR PIPELINE, LLC DCPTO209347 DECKER OPERATING CO., L.L.C. DECKO209380 DECLEVA, PAUL DECLE211490 DELAWARE BASIN JV GATHERING LLC DELAB211476 DELAWARE BASIN MIDSTREAM, LLC DELBM211538 DELAWARE G&P LLC DELGP210745 DEL-TEX HYDROCARBONS, LTD. DELTH213703 DELTA OIL & GAS LTD. DELTO215343 DENBURY ONSHORE, LLC DENBO215338 DENBURY THOMPSON PIPELINE, LLC DENBT216378 DEVON ENERGY PRODUCTION CO, L.P. DEVEP216732 DEVON GAS SERVICES, L.P. DEVGS216718 DEW GATHERING LLC DEWGA216748 DEWBRE PETROLEUM CORPORATION DEWPC216729 DFW MIDSTREAM SERVICES LLC DFWMS217024 DIAMONDBACK OPERATING, LP DIAMB217012 DIAMONDBACK E&P LLC DIAME216913 DIAMOND M DRLG & EXPL CO. DIAMM216987 DIAMOND SHAMROCK REF. CO., L.P. DIAMS

220855 DISCOVERY NATURAL RESOURCES LLC DISCN220865 DISCOVERY OPERATING, INC. DISCV221458 DKS TRANSPORT LLC DKSTR196830 D-MIL PRODUCTION, INC. DMILP221580 DMV PIPELINE LLC DMVPL222228 DOMINION GAS VENTURES, LP DOMIG222282 DOMINION OKLAHOMA TEXAS E&P, INC DOMOK223415 DORADO TRANSPORTATION, LLC DORAD223390 DORADO OIL COMPANY DOROC227525 DOW CHEMICAL COMPANY, THE DOW227528 DOW PIPELINE COMPANY DOWCC232295 DUNCAN OIL PROPERTIES, INC. DUNCA235809 DUPRE LOGISTICS LLC DUPRE236631 DUVAL GAS GATHERING CORPORATION DVGGC237926 DYNAMIC PRODUCTION, INC. DYNAP238464 EAGLECLAW MIDSTREAM SERVICES,LLC EAGCL238360 EAGLE ENERGY DEVELOPMENT CO EAGED238354 EAGLE FORD GATHERING LLC EAGFG238352 EAGLE FORD MIDSTREAM, LP EAGFM238465 EAGLECLAW MIDSTREAM VENTURES,LLC EAGLC239758 EASTRANS, LLC EASLL239232 EASTEX CRUDE COMPANY EASTC239748 EASTMAN GAS COMPANY, LLC EASTM240125 ECHO PRODUCTION, INC. ECHOP245655 EFS MIDSTREAM LLC EFSML251668 ENABLE GATHERING & PROCESS, LLC EGPLC246565 ELAND ENERGY, INC. ELAND250182 EL JARDIN GATHERING, LLC ELJAR250275 EL PASO NATURAL GAS CO, L.L.C. ELPNG250717 ELTM, L.P. ELTML250967 EMERALD GATHER AND TRANS, LLC EMERG252784 ENLINK MIDSTREAM OPERATING, LP EMOLP251677 ENABLE GAS GATHERING, LLC ENABG251680 ENABLE MIDSTREAM PARTNERS, LP ENABL251667 ENABLE GAS TRANSMISSION, LLC ENABT251508 ENBRIDGE GATHERING(NORTHTEXAS)LP ENBGN251674 ENBRIDGE G & P (OKLAHOMA) L.P. ENBGP251692 ENBRIDGE PIPELINES (TX INTRA) LP ENBPI251507 ENBRIDGE PIPELINES (NORTH TX)LP ENBPP251690 ENBRIDGE PIPELINES (TX GATH) LP ENBPT251701 ENBRIDGE PIPELINES (E. TX) L.P. ENBRI251691 ENCANA OIL & GAS(USA) INC. ENCAO251722 ENCINAL GATHERING, LTD. ENCGA251741 ENCINA RESOURCES, LLC ENCIR251739 ENCRESCENT, LLC ENCRE251732 ENDEAVOR PIPELINE INC. ENDEA251737 ENDEAVOR TANK & TRANSPORT LLC ENDET

251873 ENERFIN FIELD SERVICES LLC ENEFF252002 ENERGEN RESOURCES CORPORATION ENEGE251885 ENERFIN RESOURCES II-92 L.P. ENEII252058 ENERQUEST OPERATING L.L.C. ENERL251989 ENERGY PRODUCTION CORPORATION ENERP252020 ENERGYQUEST II, LLC ENERQ252131 ENERVEST OPERATING, L.L.C. ENERV252005 ENERGY TRANSFER FUEL, LP ENETF252017 ENERGY TRANSFER COMPANY ENETR252787 ENLINK CRUDE PURCHASING LLC ENLIC252779 ENLINK CRUDE MARKETING, LLC ENLKC252772 ENLINK MIDSTREAM SERVICES, LLC ENLKM252776 ENLINK NORTH TEXAS GATHERING, LP ENLKN252785 ENLINK PERMIAN II, LLC ENLKP253361 ENSTOR KATY STORAGE & TRANSP LP ENSTO253117 ENTERPRISE CRUDE OIL LLC ENTCO253136 ENTERPRISE CRUDE PIPELINE LLC ENTCP253138 ENTERPRISE FIELD SERVICES, LLC ENTFS253368 ENTERPRISE PRODUCTS OPERATINGLLC ENTPO253126 ENTERPRISE BIGTHICKET PL SYS LLC ENTRB253162 EOG RESOURCES, INC. EOGRE253120 EOG RESOURCES MARKETING LLC EOGRS253385 EP ENERGY E&P COMPANY, L.P. EPEEP253404 EPIC PERMIAN OPERATING, LLC EPICP253406 EQT PRODUCTION TEXAS, LLC EQTPT253348 ERGON OIL PURCHASING, INC. ERGOP253480 ERNEST OPERATING COMPANY ERNES255102 ETC GAS COMPANY, LTD. ETCGC255103 ETC MARKETING, LTD. ETCML255104 ETC TEXAS P/L, LTD ETCTP255138 ETEX GAS, INC. ETEXG251669 ENABLE TEXOLA G & P, LLC ETGPL255139 ETP CRUDE LLC ETPCR256491 EVERGREEN OPERATING CO., LTD. EVERO256690 EVX MIDSTREAM PARTNERS LLC EVXMI238085 E W D OIL EWDOI256915 EXCO OPERATING COMPANY, LP EXCOO256931 EXCO RESOURCES, INC. EXCOR257082 EXPRO ENGINEERING, INC. EXPRO257128 EXXON MOBIL CORPORATION EXXMO257129 EXXONMOBIL PIPELINE COMPANY EXXMP257155 EXXONMOBIL OIL CORPORATION EXXOM258410 FAIR OIL, LTD. FAIRD261265 FAMCOR TRANSPORTATION, INC. FAMCT261560 FARADAY MIDSTREAM COMPANY FARAM038723 AVRA OIL COMPANY FARST263696 FASKEN OIL AND RANCH, LTD. FASKE

263701 FAULCONER, VERNON E., INC. FAULR263935 FEAGAN GATHERING COMPANY FEAGC267767 FIELDWOOD ENERGY OFFSHORE LLC FIELD267774 FIELDWOOD ONSHORE LLC FIEON268602 FINLEY RESOURCES, INC. FINLR269017 FIRST RIVER ENERGY, LLC FIRRE271310 FIVE-JAB, INC. FIVEJ953814 4J ENERGY, LLC FJELC273885 FLINT HILLS RESOURCES, LP FLINH273921 FLINT PIPELINE COMPANY FLINT273994 FLORIDA GAS TRANSMISSION CO. LLC FLORI275465 FOOTHILLS TEXAS, INC. FOOTH276312 FORESTA GATHERING, LLC FOREG276977 FORMULA MIDSTREAM PARTNERS LLC FORMU280941 FOUNDATION OIL COMPANY, INC. FOUND280632 FOUR STAR OIL & GAS COMPANY FOURO281370 FOX, HEWITT B., INC. FOXHB285204 FREEPOINT CMDTYS TRDG & MKTG LLC FRECT285092 FREEDOM PIPELINE, LLC FREPL286611 FRIO LASALLE PIPELINE, LP FRIOL287292 FROST BROTHERS PIPELINE, LLC FROSB288427 FUELS COTTON VALLEY GATH, LLC FUELV292381 GAEDEKE GAS GATHERING, LLC GAEDE292850 GAITHER PETROLEUM CORPORATION GAIPC293374 GALVESTON BAY PIPELINE LLC GALBL293303 GALLOWAY ENERGY CO. GALLO295861 GARRISON LTD. GARRI297089 GASPER RICE RESOURCES, LTD. GASPE297136 GATEWAY GATHERING & MKTG. CO. GATEG297140 GATEWAY PIPELINE COMPANY LLC GATEW298884 GEMARMI INC. GEMAR300178 GENESIS CRUDE OIL, L.P. GENEC300204 GENESIS PIPELINE TEXAS, L.P. GENEP300824 GEOPETRA PARTNERS, LLC GEOPP301287 GEOSOUTHERN ENERGY CORPORATION GEOSO310674 GLORI ENERGY PRODUCTION LLC GEPLC302597 GIANT ENERGY CORP. GIANT302773 GIBSON ENERGY MARKETING, LLC GIBSE307611 GLADEWATER GATHERING CO., L.P. GLADG310950 GLOSSOP, ROBERT L. ESTATE GLOSE310719 GLOSSOP OIL & GAS, LLC GLOSO313990 GOLDSTON OIL CORPORATION GOLD313705 GOLDSMITH OPERATING, LLC GOLOP324750 GRAND RESOURCES, INC. GRAND331530 GREENHAW, MORRIS R. GREEH587110 MORRIS R. GREENHAW OIL&GAS, INC GREEO331861 GREER EXPLORATION CORPORATION GREEX

330185 GREEN RIVER RESOURCES INC. GRERR334940 GROENDYKE TRANSPORT, INC. GROEN337916 GULF COAST PIPELINE CO. GULCP337771 GULF COAST ENERGY, INC. GULFC338201 GULFMARK ENERGY, INC. GULFM338746 GULFTEX ENERGY III, LP GULLP338533 GULF SOUTH PIPELINE COMPANY, LP GULSO338572 GULF STATES TRANSMISSION LLC GULTR339493 GUNN OIL COMPANY GUNNO254263 ESCO OIL OPERATING COMPANY LLC H344406 HALCON FIELD SERVICES, LLC HALCF344412 HALCON OPERATING CO., INC. HALCO345411 HALEX OIL CORPORATION HALEX348760 HAMILTON PIPELINE, INC. HAMIL348610 HAMILTON, J. R. HAMJR350200 HAMMAN OIL & REFINING COMPANY HAMMA354876 HANLON INTRASTATE PIPELINE, INC. HANLI354875 HANLON GAS PROCESSING, LTD. HANLO360320 HARRISON INTERESTS, LTD. HARRI361931 HARRISON, SAM G. OIL, INC. HARSO362980 HARTOIL CORPORATION HARTO363118 HARVEST PIPELINE COMPANY HARVE366631 HAWK GATHERING CO., LTD. HAWGC367651 HAWKWOOD ENERGY MIDSTREAM, LLC HAWKM370061 HEADINGTON ENERGY PARTNERS, LLC HEADE375197 HEMCO GAS GATHERING, L.L.C. HEMCO378508 HENNIG PRODUCTION CO., INC. HENNI378641 HENRY PETROLEUM LLC HENRP379758 HERITAGE GATHERING CORPORATION HERIT381632 HESCO PIPELINE COMPANY, L.L.C. HESCP383757 HIBBARD ENERGY, LP HIBBA386310 HILCORP ENERGY COMPANY HILCE388445 HILL-LAKE GAS STORAGE, LLC HILLA388864 HILLTOP RESORT GS, LLC HILLT341330 H & L GAS CO. HLGCO393768 HOLLYFRONTIER REF & MKTG LLC HOLLF393697 HOLLY ENERGY PARTNERS-OP, L.P. HOLLY396852 HOME PETROLEUM CORP. HOMEP397157 HONDO PIPELINE, INC. HONDP399624 HOPEWELL OPERATING, INC. HOPEW400091 HORIZON PROD. AND OPERATING, LLC HORIP404520 HOUSTON PIPE LINE COMPANY LP HOUSP405950 HOWARD EXPLORATION, INC. HOWAE406605 HOWELL OIL & GAS, INC. HOWEO385812 HIGHLANDS PIPELINE COMPANY, L.C. HPCLC407764 HRB OPERATING COMPANY, INC. HRBOC408850 HUBER, J. M., CORPORATION HUBER

411736 HUGHES, DAN A. COMPANY, L.P. HUGHE418936 HUNTER GATHERING, L.P. HUNTL416330 HUNT OIL COMPANY HUNTO421166 HYDROCARBON OPERATING, INC. HYDOP423716 INDEPENDENCE RESOURCES MGMT, LLC INDER423831 INDIGO RESOURCES LLC INDIG424525 INLAND CONTRACTORS, INC. INLAN425829 IRA RESOURCES, INC. IRARE426617 IRONWOOD MIDST ENERGY PTNRS LLC IRONW427960 J-W OPERATING CO. J - W428008 JACK RUSSELL OIL, LLC JACKR429665 JAMES LAKE MIDSTREAM LLC JAMES429781 JANDAR EXPLORATION, L. C. JANDA430368 JAY MANAGEMENT COMPANY, LLC JAYMC430723 JEFFERSON PIPELINE COMPANY JEFFS431265 JENNINGS EXPLORATION COMPANY JENNI432118 JET OIL PRODUCERS, INC. JETOP432283 JETTA OPERATING COMPANY, INC. JETTA433065 JLV PIPELINE, LLC JLVPL448014 JPM EOC OPERATING, INC. JMPEO192030 CUERVO, INC. JNXAC441132 JONES ENERGY, LLC JONEE436155 JOHNSON & ERNST OPERATING CO. JONEO427892 J T MORGAN, INC. JTMOR450033 KACHINA PIPELINE COMPANY, INC. KACHI450175 KAISER-FRANCIS OIL COMPANY KAISE450790 KARBUHN OIL COMPANY KARBU453170 KEBO OIL & GAS, INC. KEBOO455074 KELTON GAS SERVICES, LP KELTG458768 KEYSTONE GAS GATH. & MKTG., LLC KEYST458819 KIAWAH RESOURCES, LLC KIAWR458815 KIBO COMPRESSOR CORP. KIBOC460054 KILLAM OIL CO., LTD. KILLA463265 KIMRAD TRANSPORT, LP KIMRA463304 KINDER MORGAN CO2 COMPANY, L.P. KINDC463316 KINDER MORGAN PRODUCTION CO LLC KINDP463313 KINDER MORGAN WINK PIPELINE LLC KINDW463334 KINDER MORGAN SCURRY CONN. LLC KINSC463295 KINDER MORGAN CRUDE OIL PL LLC KMLLC457807 KERR-MCGEE OIL & GAS ONSHORE LP KMONS463345 KINDER MORGAN TEXAS PIPELINE LLC KMOTX463338 KINDER MORGAN TEJAS PIPELINE LLC KMTEJ469512 KINDER MORGAN TREATING LP KMTRT473732 KOCH PIPELINE COMPANY, L.P. KOCPC475741 KORNYE-TILLMAN COMPANY KORNY480793 LA CENTRAL CRUDE, INC. LACEN479902 L A C, INC. LACIN

482327 LAGUNA PETROLEUM CORPORATION LAGUN483603 LAKEWOOD ENERGY SOLUTIONS LLC LAKEE483612 LAKEWOOD MARKETING LLC LAKEM483925 LAMAR OIL & GAS, INC. LAMAO485758 LANTANA MIDSTREAM, LP LANTM486575 LAREDO MIDSTREAM SERVICES, LLC LAREM486517 LAREDO ENERGY OPERATING, LLC LAREO486610 LAREDO PETROLEUM, INC. LAREP486640 LARGO OIL COMPANY LAROC487392 LAS ANIMAS NATURAL GAS COMPANY LASAN489680 LAVACA PIPE LINE COMPANY LAVAC489783 LAVANCO ENERGY, LTD. LAVAE491373 LAYLINE ENERGY I LLC LAYLI479574 L.C.S. PRODUCTION COMPANY LCSPR493381 LECHUIGLLA COMPRESSION COMPANY LECHC495445 LEGACY RESERVES OPERATING LP LEGAR495689 LEHNERTZ-FAULKNER, INC. LEHNE499984 LEWIS OPERATING COMPANY LEWOC500600 LIGHTNING OIL COMPANY LIGHT500740 LILLIS, MICHAEL D. LILLS500793 LIME ROCK RESOURCES III-A, L.P. LIMER501130 LINDER, JOHN OPERATING CO., LLC LINDJ501399 LINEAR ENERGY MANAGEMENT LLC LINEE501480 LINN OPERATING, LLC LINNL501751 LION OIL TRADING & TRANS, LLC LIONT503975 LIVELY EXPLORATION COMPANY LIVEL479988 L.J. RESOURCES, LLC LJRES504687 LOBO PIPELINE COMPANY LLC LOBPL504917 LOCKOUT CORPORATION LOCKO507585 LONG TRUSTS, THE LONGT507230 LONE STAR LAND & ENERGY II, LLC LONST480177 LPC CRUDE OIL MARKETING LLC LPCCM480201 LPC CRUDE OIL II, L.L.C. LPCCR511868 LUBBOCK GAS GATHERING LTD., LLP LUBBO511940 LUCID ENERGY DELAWARE, LLC LUCED511943 LUCID ENERGY WESTEX, LLC LUCID516255 LYNX OPERATING CO., INC. LYNXO521010 MACLASKEY, K. OIL FLD. SVC. INC. MACKO521264 MADISONVILLE MIDSTREAM LLC MADMI521240 MADISON PIPE LINE COMPANY MADPL521315 MAGELLAN E&P HOLDINGS, INC. MAGEP521516 MAGNUM PRODUCING, LP MAGNP522977 MAJOR MIDSTREAM OP PARTNERS, LLC MAJOR525238 MAP PRODUCTION CO., INC. MAPPR525398 MARATHON OIL EF LLC MARAE525380 MARATHON OIL COMPANY MARAO526405 MARKWEST GAS SERVICES, L.L.C. MARKG

526412 MARKWEST ENERGY E TX GAS CO, LLC MARKL526429 MARKWEST OKLAHOMA GAS CO, L.L.C. MARKO526430 MARKWEST PINNACLE, L.L.C. MARKP525390 MARATHON PIPE LINE LLC MARPL531085 MARWELL PETROLEUM LTD PARTNRSHIP MARPP526675 MARQUEE CORPORATION MARQU529481 MARTIN CRUDE MARKETING CO. MARTC528450 MARTIN OPERATING PARTNERSHIP LP MARTO528480 MARTIN TRANSPORT, INC. MARTT531355 MASCOT OIL COMPANY MASCO531372 MASCOT PIPELINE, LLC MASCP532993 MATADOR PRODUCTION COMPANY MATPR534451 MAXIM CRUDE OIL, L.L.C. MAXIC534465 MAXIMUS OPERATING, LTD. MAXIO546675 MCDAY ENERGY CORP. MCDAY549380 MCGEE, TOM CORPORATION MCGEE549836 MCGOWAN WORKING PARTNERS, INC. MCGWI556482 MD AMERICA PIPELINE, LLC MDAMP564756 MIDCON GATHERING LLC MDCGA558300 MEDALLION OIL COMPANY MEDAL558336 MEDALLION OPERATING COMPANY, LLC MEDOP559624 MEMORIAL PRODUCTION OPER. LLC MEMPR518265 M. E. OPERATING & SERVICES, INC. MEOPS561136 MERIT ENERGY COMPANY MERIT562580 MEXTEX OPERATING COMPANY MEXTX564722 MIDCOAST OPERATING, L.P. MIDOP565909 MIDPOINT MIDSTREAM, LLC MIDPO567103 MILESTONE OPERATING, INC. MILES593635 MINERAL TECHNOLOGIES, INC. MINET570406 MISSION PETROLEUM CARRIERS, INC. MISPC571987 MLC OPERATING, LP MLCOP518552 M. M. MILLER & SONS, LTD. MMMIL572602 MOBEETIE RESOURCE DEV LLC MOBEE572550 MOBIL PRODUCING TX. & N.M. INC. MOBIP572580 MOBIL PIPE LINE COMPANY MOBPL572583 MOBIL VANDERBILT-BEAUMONT P/L CO MOBVA574324 MOMENTUM OPERATING CO., INC. MOMEN575000 MONCRIEF, W. A., JR. MONCR578309 MONUMENT PIPELINE, LP MONUP574357 MONARCH OIL PIPELINE, LLC MOPLC585750 MORGAN ENTERPRISES, INC. MORGA589954 MORTIMER PRODUCTION COMPANY MORTP589984 MOSBACHER ENERGY COMPANY MOSEC811203 STAKEHOLDER MS CRUDE OIL PL LLC MSCRU592454 MSE OPERATING CORP. MSEOC518934 MSLATX PIPELINE COMPANY MSLAT593193 MUNSON OPERATING, INC. MUNSO

593982 MUREX LLC MUREX594324 MURPHREE ENERGY, INC. MURPE596636 MUSKEGON DEVELOPMENT COMPANY MUSDC596632 MUSKET CORPORATION MUSKE596921 MUSTANG FUEL CORPORATION MUSTA596864 MUSTANG ISLAND GATHERING, LLC MUSTI598796 NACOGDOCHES OIL AND GAS, INC. NACOG598940 NADEL AND GUSSMAN PERMIAN,L.L.C. NADGP600597 NATIONAL CRUDE MARKETING, LLC NATCM600971 NATURAL GAS P/L CO OF AMER LLC NATUG601188 NAVITAS MDSTR MIDLAND BASIN, LLC NAVIT601108 NAVARRO MIDSTREAM SERVICES, LLC NAVMI605917 NEUHAUS, V. F. PROPERTIES, INC. NEUPI605990 NEUMIN PRODUCTION COMPANY NEUVG607030 NEWMAN CORPORATION NEWCO606617 NEWFIELD EXPLORATION COMPANY NEWFE606605 NEW HORIZON INVESTMENTS LTD. NEWHO607393 NEWMAN & SCOTT NEWSC609238 NGG GATHERING COMPANY, LLC NGGGC609236 NGL CRUDE LOGISTICS, LLC NGLCL611665 NOBLE ENERGY INC NOBLE611674 NOBLE MIDSTREAM SERVICES, LLC NOBMI614500 NORTHERN NATURAL GAS CO. NONAT613770 NORTH CONCHO RECLAMATION NORCR614551 NORTHFIELD ENTERPRISES, INC. NORFE616759 NUSTAR PERMIAN FIELD SVCS, LLC NPFSL616761 NUSTAR PERMIAN TRANS AND STG,LLC NPTSL616936 NTU PIPELINE, LLC NTUP616986 NZ OPERATING COMPANY INC. NZOPE617481 OASIS PIPE LINE COMPANY TX L.P. OASIP617482 OASIS TRANSP & MARKETING CORP. OASIT617512 O'BENCO, INC. OBENC617543 OCCIDENTAL ENERGY MARKETING,INC. OCCEM617544 OCCIDENTAL PERMIAN LTD. OCCID616999 OCCIDENTAL W TX OVERTHRUST, INC. OCCWT618230 ODEGARD ENERGY, INC. ODEIN618970 OGDEN RESOURCES CORPORATION OGDEN617041 O.G.P. OPERATING, INC. OGPOP619356 OGS PIPELINE LLC OGSPL621080 OKIE OPERATING COMPANY, LTD. OKIEO621088 OKLAHOMA PETROLEUM ALLIES, LLC OKPET622720 OMIMEX PETROLEUM, INC. OMIPE622740 OMNI PETROLEUM CORPORATION OMNPC623030 ONEOK FIELD SERVICES CO, L.L.C. ONEFS617094 ONEOK WESTEX TRANSMISSION,L.L.C. ONEWE625704 ORION PIPELINE, LLC ORIOL625703 ORION PIPELINE, LTD. ORIOP

257042 EXPLORATION TECHNIQUES INC. ORUM617042 O'RYAN OIL AND GAS ORYAN627117 ORYX SO. DELAWARE OGT LLC ORYXS627829 OSBORN,W.B. OIL & GAS OPERATIONS OSBOR627884 OSPREY PETROLEUM COMPANY, INC. OSPPC630591 OXY USA INC. OXUSA630555 OXY USA WTP LP OXYUS630610 OZONA GAS PROCESSING PLANT OZOGP630654 OZONA PIPELINE ENERGY CO, LLC OZONP631643 PABLO ENERGY II, LLC PABLE633120 PACESETTER ENERGY, LLC PACES637414 PALOMA RESOURCES, LLC PALRE637985 PANHANDLE EASTERN P/L CO., LP PANHA638246 PANHANDLE OILFIELD SVC CO INC. PANHO638486 PANTERA ENERGY COMPANY PANTE638516 PANTHER OPERATING COMPANY, LLC PANTO638508 PANTHER INTERSTATE PL ENERGY,LLC PANTR638919 PARADIGM MIDSTREAM SVCS-ST, LLC PARAS642718 PARTEN OPERATING INC. PARTE643251 PATARA OIL & GAS LLC PATAR643402 PATTERSON ENERGY CORPORATION PATEC635044 PAISANO TRANSMISSION COMPANY PATRA645445 PAWNEE PIPELINE, LLC PAWNP646832 PDC PERMIAN, INC. PDCPE647135 PEAK ENERGY CORPORATION PEAKE648675 PECAN PIPELINE COMPANY PECAN649246 PECOS PIPELINE LLC PECOP650961 PELICAN RESERVE PIPELINE COMPANY PELCN651230 PENINSULA PIPELINES (N TX) LLC PENIP651780 PENN VIRGINIA OIL & GAS, L.P. PENNO651845 PENNCO TRANSPORT, INC. PENTR655815 PERMIAN CRUDE TRANSPORT, LP PERMC655823 PERMIAN DISPOSAL SERVICES LLC PERMD660043 PETRO-HUNT, L.L.C. PETHU659826 PETRA OLEUM CORP. PETRA660025 PETROSAURUS, INC. PETSA660313 PETRO-SMITH OPERATING LLC PETSM660213 PETROTEX ENGINEERING COMPANY PETTE661260 PEVELER PIPELINE, LP PEVEL663109 PHILLIPS, JACK L. CO. PHIJC661634 PHILLIPS 66 COMPANY PHILL663865 PHILLIPS 66 PIPELINE LLC PHILP661626 PHILLIPS UTILITY GAS CORPORATION PHILU664141 PHOENIX GAS PIPELINE COMPANY PHOEN664125 PHOENIX HYDROCARBONS OPERATING PHOHC665587 PILOT TRAVEL CENTERS LLC PILOT665687 PINNACLE GAS TREATING LLC PINNL

665694 PINNACLE MIDSTREAM, LLC PINNM665707 PIONEER GAS PIPELINE, INC. PIONE665748 PIONEER NATURAL RES. USA, INC. PIONN665767 PIONEER TRANSPORTATION LLC PIONT631388 PK GATH & OILFIELD SVCS, INC. PKGAO667884 PLAINS PIPELINE L.P. PLAIP667883 PLAINS MARKETING, L.P. PLAML668494 PMO PMO631392 P & M PIPELINE PMPPL669010 POLARIS PIPELINE SYSTEMS, LLC POLAP669000 POLARIS PRODUCTION CORP. POLAR653787 PERISCOPE OPERATING LLC POLLC674342 POWELL, GENE INVESTMENTS, INC. POWEL675896 PRAIRIE PIPELINE CO. PRAPL676073 PREMIER NATURAL RESOURCES, LLC PREMI676856 PRICE OPERATING, LLC PRICO677770 PRIME OPERATING COMPANY PRIMO679237 PRISM MIDSTREAM LLC PRMLC677852 PRIMEXX OPERATING CORPORATION PRMXX681161 PROGENIES OPERATING LLC PROGL681493 PROTEGE ENERGY III LLC PROTE682089 PTT PREMIER TRADING AND TRAN LLC PTTPR683415 PURSUIT OIL & GAS, LLC PURSU683200 PURVIS OPERATING CO. PURVI684441 PYRAMID GAS CO PYRGC684453 QC ENERGY RESOURCES TEXAS, LLC QCETX684474 QEP ENERGY COMPANY QEPEN684517 QUAIL CREEK OIL CORPORATION QUCOC684634 QUESTA ENERGY CORPORATION QUEST685855 R & B ENERGY, L.L.C. R&BEL688680 RAINBOW PIPE LINE COMPANY RAINB691716 RANGER GAS GATHERING, L.L.C. RANGG691795 RANGE PRODUCTION COMPANY, LLC RANPR695569 RAYDON EXPLORATION, INC. RAYDO722895 ROCKDALE ENERGY, LLC RDELC685874 R & D OPERATING, INC. RDOPI696090 REATTA ENERGY, INC. REATT697051 REDMON OIL COMPANY, INC., THE REDMO697109 RED WATER RESOURCES, INC. REDWA698560 REEVES COUNTY SYSTEMS, INC. REECO698776 REGENCY TEXAS PIPELINE LLC REGET699802 REIDCO ENTERPRISES REIDC701107 RELIANCE GATHERING, LLC RELIG701606 REMUDA OPERATING COMPANY REMUD701878 REO GATHERING, LLC REOGA702760 REPUBLIC MIDSTREAM, LLC REPBM702757 REPUBLIC MIDSTREAM MARKETING,LLC REPMM

709694 RICHEY, RAY MANAGEMENT CO., INC. RICHE707915 RICHARDSON FUELS, INC. RICHF710632 RICKY SHULER TRUCKING INC RICKY711100 RIDGE OIL COMPANY RIDGE712153 RILEY EXPLORATION OPG CO, LLC RILEY712245 RIM OPERATING, INC. RIMOP712336 RINCON PETROLEUM CORPORATION RINCO712382 RING ENERGY, INC. RING712543 RIO ENERGY INTERNATIONAL, INC. RIOEN712840 RIO PETROLEUM, INC. RIOPI714221 RKI EXPLORATION & PRODUCTION LLC RKIEP687208 R. LACY SERVICES, LTD. RLACY718775 ROBERTSON-BRYCE MANAGEMENT, LLC ROBBM718512 ROBERTS & HAMMACK INC. ROBRT727002 ROMAC GAS CO., INC. ROMAC483310 LAKE RONEL OIL COMPANY RONEL727789 ROSE ROCK MIDSTREAM CRUDE, L.P. ROSER728883 ROSETTA RESOURCES OPERATING LP ROSET730462 ROVER PETROLEUM OPERATING, LLC ROVER732075 ROYAL PRODUCTION COMPANY, INC. ROYPC737890 RUST OIL CORP. RUSTO738100 RUTHERFORD OIL CORPORATION RUTHE739823 RYDER SCOTT MANAGEMENT, LLC RYDEM742175 SABINE PIPE LINE LLC SABIN742141 SABINE MID-CON GATHERING LLC SABMI742143 SABINE OIL & GAS CORPORATION SABOC742199 SABINE VALLEY PIPELINE LLC SABPI742261 SABRE OPERATING, INC. SABRE743069 SADDLE OPERATING, LLC SADDL743215 SAGE ENERGY COMPANY SAGEN748102 SANTA ANNA OPERATING CO I, LLC SANAA747012 SANCHEZ OIL & GAS CORPORATION SANCO747534 SANDEL OPERATING COMPANY SANDO748011 SANDRIDGE EXPL. AND PROD., LLC SANDX830262 SUPERIOR CRUDE GATHERING, INC. SCGTI756633 SCHUCH PIPELINE PARTNERSHIP SCHUP760218 SCOUT ENERGY MANAGEMENT LLC SCOUT761550 SEADRIFT PIPELINE CORPORATION SEDFT763160 SEEK ENERGY, LLC SEEKE761710 SEAGULL OPERATING CO., INC. SEGLL764004 SEISTECH DEVELOPMENT, INC. SEIST766387 SEMGAS, L.P. SEMGA767090 SENEX PIPELINE COMPANY SENEX767500 SENTINEL TRANSPORTATION, LLC SENTL769100 SHAMROCK PIPE LINE CORPORATION SHAMP768300 SHADOW PIPELINE CORPORATION SHAPL773840 SHELL OIL COMPANY SHELO

774715 SHELL TRADING (US) COMPANY SHELT774719 SHELL WESTERN E&P SHELW775854 SHERIDAN PRODUCTION COMPANY, LLC SHERP776590 SHIDLER, MARK L., INC. SHIDL774710 SHELL PIPELINE COMPANY LP SHLPL779259 SIANA OIL & GAS SIANA780000 SIDWELL OPERATING COMPANY, L.P. SIDWE781909 SILVER CREEK OIL & GAS, LLC SILCR781880 SILVER OIL & GAS INC. SILVO784548 SINCLAIR OIL & GAS COMPANY SINCG785940 SKLAR EXPLORATION COMPANY LLC SKLEX788778 SLOCUM GAS GATHERING CO., INC. SLOCG781931 SILVER STAR OPERATING CO., LLC SLVRS789662 SMITH PRODUCTION INC. SMIPI741084 S N D ENERGY COMPANY, INC. SNDEC797102 SN EF MAVERICK, LLC SNEFM797110 SN OPERATING, LLC SNOPL806157 SOUTHWEST ENERGY, L.P. SOENE800750 SOJOURNER DRILLING CORPORATION SOJDC800925 SOJITZ ENERGY VENTURE, INC. SOJIT833597 SYDRI OPERATING, LLC SOLLC801643 SONERRA RESOURCES CORPORATION SONER800281 SO OPERATING COMPANY SOOPR802631 SOTEX FUELS, LLC SOTFU803248 SOUTHCROSS CCNG GATHERING LTD. SOUCC803197 SOUTHCROSS GULF COAST TRANS. LTD SOUCG803247 SOUTHCROSS NGL PIPELINE LTD. SOUCR803246 SOUTHCROSS CCNG TRANSMISSION LTD SOUCT803249 SOUTHCROSS GATHERING LTD. SOUGA803817 SOUTHERN GAS MARKETING CO. SOUGM806190 SOUTHWEST GAS SYSTEMS, INC. SOUGS802618 SOUTH C&C TRUCKING, LLC SOUTC806415 SOUTHWEST OPERATING, INC.-TYLER SOUWO806745 SOUTHWESTERN GAS PIPELINE,L.L.C. SOWGP807745 SPARTAN MIDSTREAM LLC SPARM807870 SPARTAN OPERATING COMPANY, INC. SPART810581 SPRINGFIELD PIPELINE LLC SPRIP810710 SPRINT TRANSPORT, LLC SPRNT810818 SQUYRES OIL CO., INC. SQUYO810842 SSC, INC. SSCIN812133 STAMPER OPERATING CO., INC. STAMP816097 STATELINE PROCESSING, LLC STAPR815810 STARR COUNTY GAS SYSTEM STARR816087 STATELINE CRUDE, LLC STATC816094 STATELINE GATHERING, LLC STATL816431 STATOIL MKTG & TRADING (US) INC. STATM816436 STATOIL PIPELINES LLC STATP

816437 STATOIL TEXAS ONSHORE PROP LLC STATT816115 STATEWIDE CRUDE INC. STATW817555 STEPHENS & JOHNSON OPERATING CO. STEPH821927 STINGRAY OIL COMPANY, INC. STING741187 STM OIL & GAS LLC STMOG823866 STONEWATER PIPELINE COMPANY LLC STNWA825420 STRAT LAND EXPLORATION COMPANY STRAL816047 STARTEX FIELD SERVICES, LLC STRFS828082 STROUD PETROLEUM, INC. STROU828880 SULPHUR RIVER EXPLORATION, INC. SULPH829617 SUNLINE ENERGY SERVICES, INC. SUNLI829642 SUNRAY MARKETING, LLC SUNMK829626 SUNOCO PTNRS. MKTG.&TERMINALS LP SUNOC829627 SUNOCO PIPELINE L.P. SUNOP830286 SUPERIOR PIPELINE COMPANY,L.L.C. SUPPI833090 SWARTZ OIL COMPANY SWART833596 SWN PRODUCTION COMPANY, LLC SWNPR835506 TALISMAN ENERGY USA INC. TALIS835707 TANDEM ENERGY CORPORATION TANDE836022 TARGA DELAWARE LLC TARDE836028 TARGA GAS PIPELINE LLC TARGG836044 TARGA PIPELINE MID-CONTINENT LLC TARGP836041 TARGA PL MID-CONT WESTTEX LLC TARGW836037 TARGA MIDSTREAM SERVICES LLC TARMI836046 TARGA MIDLAND LLC TARML836021 TARGA CRUDE MARKETING LLC TCMLC840605 TEA ENERGY SERVICES LLC TEAEN840955 TECO GAS GATHERING LLC TECGG841527 TENNESSEE GAS PIPELINE CO,L.L.C. TEGPL841328 TEMPEST ENERGY RESOURCES, LP TEMPE841409 TENISON OIL COMPANY TENIS842983 TEON MANAGEMENT, LLC TEONM843108 TEPEE PETROLEUM CO., INC. TEPEE844119 TESUQUE PIPELINE, LLC TESUQ845690 TEXAS EASTERN TRANSMISSION, LP TEXAE844344 TEXAS AMERICAN RESOURCES COMPANY TEXAM845775 TEXAS ENERGY ENTERPRISES, LLC TEXEN878608 TEXICAN CRUDE&HYDROCARBONS, LLC TEXIC849724 TEXLA ENERGY MANAGEMENT, INC. TEXLE846646 TEXAS MIDSTREAM GAS SVCS, LLC TEXMG846906 TEXAS OIL PURCHASING LLC TEXOI850656 TEXON L.P. TEXOL848010 TEXAS SECONDARY OIL CORPORATION TEXSE850830 TEXPATA PIPE LINE COMPANY TEXUP852145 THOMAS OIL AND GAS INC. THOMO855610 THOMPSON, J. CLEO THOMP857405 THREE-B OIL COMPANY, THE THREB

953682 3-T EXPLORATION, INC. THREE860885 TITUS COUNTY TITUS860929 TKOG LLC TKOGL862645 TORRENT OIL LLC TORRE871435 TRUE OIL TRUCKING & MKTG, LLC TOTML863688 TPG TRANSPORT, LLC TPGTR863706 TPL SOUTHTEX MIDSTREAM LLC TPLSM844073 TESSARA PETROLEUM RESOURCES, LLC TPRLC864444 TRANSCONTINENTAL GAS P.L. CO,LLC TRACT864315 TRAFIGURA TRADING LLC TRAFT864477 TRANSOIL MARKETING, LLC TRAOM864953 TRANSWESTERN PIPELINE CO., LLC TRAPI867578 TREK RESOURCES, INC. TREKR867658 TREND GATHERING & TREATING, LLC TRENG868622 TRI-C RESOURCES, LLC TRICS870230 TRINITY GAS CORPORATION TRINI870423 TRIPLE J INVESTMENTS INC TRIPJ870317 TRINITY RIVER MIDSTREAM, LLC TRIRM871097 TRISTATE ETX, LLC TRISX871168 TRIVIUM OPERATING, LLC TRIVO863725 TR OFFSHORE, LLC TROFF863740 TR RODESSA, INC. TRROI872122 TRUNKLINE GAS COMPANY, LLC TRUNL874794 TWIN EAGLE GARDENDALE PL, LLC TWGPL874792 TWIN EAGLE CRD & LSEHLD GATH,LLC TWNEC845951 TEXAS GAS SERVICE COMPANY TXGSC847710 TEXAS PETROLEUM INVESTMENT CO. TXPIC847762 TEXAS PIPELINE LLC TXPLL875163 TX PIPELINE WEBB CO LEAN SYS,LLC TXPLS875162 TX PIPELINE WEBB CO RICH SYS,LLC TXPRS876512 UNION GAS PIPELINE, LLC UNGPL876520 UNION OIL COMPANY OF CALIFORNIA UNICL877245 UNITED ENVIRONMENTAL SERV., LLC UNIEN877227 UNITED ENERGY TRADING LLC UNITE877921 UNITEX OIL & GAS, L.L.C. UNITO877099 UNIT PETROLEUM COMPANY UNITP878395 UNIVERSAL NATURAL GAS, INC. UNIVN878409 UNOCAL PIPELINE COMPANY UNOPL876900 UNION SEABOARD CORPORATION UNSEA878925 UPHAM OIL & GAS COMPANY UPHAM879035 URBAN OIL & GAS GROUP, LLC URBAN881167 VALENCE OPERATING COMPANY VALEN881247 VALERO MARKETING AND SUPPLY CO. VALMS881250 VALERO REFINING - TEXAS, L.P. VALRE881585 VANGUARD OPERATING, LLC VANGO882575 VANTAGE FORT WORTH ENERGY LLC VANTA882766 VAQUERO PERMIAN PROCESSING LLC VAQUE

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