ADDAX PETROLEUM DEVELOPMENT NIGERIA
ADDAX PETROLEUM EXPLORATION NIGERIA
AGIP ENERGY & NATURAL RESOURCES
ALBRIGHT WAVES PETROLEUM DEVELOPMENT
ALLIANCE OIL PRODUCING NIG. LTD.
ALLIED ENERGY RESOURCES NIGERIA LTD.
AMEXP ENERGY LTD.
AMNI INTERNATIONAL
ANIOMA
ASCON OIL EP
ASHBERT
ASK PETROLEUM CO. LTD.
ATLAS PETROLEUM
BEEMA ENERGY
BG E AND P NIGERIA (BG GROUP)
BIDBET PETROLEUM LTD.
BLJ LTD.
BLUEWATER OIL & GAS
BONRIVE ENERGY SERVICES LTD.
BULLION-GOLAND JV
BUSTON ENERGY RESOURCES
CAMAC INTL LTD
CAVENDISH PETROLEUM LTD.
CENTRICA CCC
CHALLENGER MINERALS
CHASEWOOD CONSORTIUM
CHEVRON NIGERIA DEEPWATER B
CHEVRON NIGERIA LTD.
CHEVRONTEXACO NIGERIA DEEPWATER ‘E’
CHINA NATIONAL OFFSHORE OIL CORP. (CNOOC)
CHINA NATIONAL PETROLEUM CORP (CNPC)
CHINIG PARTNERSHIP GLOBAL SERVICES LTD.
CHROME OIL SERVICES
CLEANWATERS REFINERY LTD.
CONOCO ENERGY NIGERIA LTD.
CONOCOPHILLIPS
CONOIL PRODUCING
CONTINENTAL OIL & GAS
COSY ENERGY LTD.
CRYSTAL PHILIPS & ENIGMA OIL SERVICES
D-12 PETROLEUM LTD.
DEETEN OIL & GAS LTD.
DELTA OIL
DEROCK
DEVON
DOMON OIL SERVICE
DUBRI OIL CO. LTD.
EASTERN PETROLEUM EXPLORATION
ELF PETROLEUM NIGERIA LTD. (EPNL)
EMERALD ENERGY RESOURCES LTD.
EMO EP
ENERGEM
ENERGULF
ENERGY PIONEER EP
ENI
EQUATOR
ESSO E & P NIGERIA (BENUE)

ESSO EXPLORATION & PRODUCTION (NIGERIA)
ESSO E & P NIGERIA DEEPWATER WEST
ETHIOPE POWER
EXPRESS PETROLEUM & GAS COMPANY
FAMFA OIL
FEZOL
FIRST AXIS OIL & GAS LTD.
FOI ENERGY
FOUR ENERGY LTD.
GAS TRANSMISSION & POWER LTD.
GLOBAL ENERGY CO. LTD.
GLOBAL STEEL
GRADAV PTY
GRASSO NIG. LTD.
GREAT LAKE ENERGY INC.
HEPCO LTD.
HERITAGE
HOWARD ENERGY
HUDSON PETROLEUM
ICON OIL & GAS
IDEAL OIL & GAS
INC NATURAL RESOURCES
INLAKS PETROLEUM RESOURCES
INTEROIL
JAIZ ENERGY
JEVKON OIL & GAS LTD
KOREA NATIONAL OIL COMPANY (KNOC)
LUNDIN PETROLEUM
MAGELLAND MAHOGANY OIL & GAS
MAINE OIL & GAS
MOBIL PRODUCING NIGERIA ULTD.
MONI PULO
MUSTANG
NEO ENERGY LTD.
NEW TIGERHEAD PSTI LTD.
NEXEN INC.
NGSS OIL & GAS LTD.
NIGER DELTA PETROLEUM RESOURCES
NIGERIAN AGIP ENERGY (NAE)
NIGERIAN AGIP EXPLORATION
NIGERIAN AGIP OIL CO. LTD. (NAOC)
NIGERIAN NATIONAL PETROLEUM CORPORATION (NNPC)
NIGERIAN PETROLEUM DEVELOPMENT CO. (NPDC)
NJ EXPLORATION SERVICES
NOREAST PETROLEUM
NORTHERN NIGERIA DEVELOPMENT CO. (NNDC)
OANDO PLC
OBAT-PETROLOG / CANTTERBURY JV
OCEAN ENERGY INC.
OIL & GAS
OILWORLD NIG. LTD.
ONGC VIDESH
ONGC-MITTAL
OPHIR
OPSL ENERGY LTD.
ORANDI
ORANTO PETROLEUM (ATLAS)

ORIENTAL ENERGY RESOURCES LTD.
OSYKA CORP
OXY NIGERIA E & P
PALACE EXPLORATION
PAN OCEAN OIL CORP. NIGERIA LTD.
PASADENA
PEAK PETROLEUM INDUSTRIES NIGERIA LTD.
PETROBRAS
PETROSA
PHILLIPS DEEPWATER EXPLORATION NIGERIA
PRIMETIME INTERNATIONAL ENERGY SERVICES
PROVIDENCE RESOURCES
RAYFLOSH PETROLEUM LTD
REFINEE PETROPLUS CONSORTIUM
RIVGAS PET
ROYAL DUTCH SHELL
SAHARA ENERGY EXPLORATION & PRODUCTION
SAPELE PET
SAPID PETROLEUM
SASOL E & P NIGERIA
SHELL NIGERIA E & P CO. (SNEPCO)
SHELL NIGERIA EXPLORATION PROPERTIES ALPHA
SHELL NIGERIA ULTRA DEEP
SHELL PET. DEVELOPMENT CO. OF NIG. 
(SPDC, Western and Eastern Division)
SIKA PETROLEUM LTD.
SINOSURE
SONEMA ENERGY LTD.
SOUTHLAND
SOVEREIGN OIL & GAS
SPECIALTY DRILLING FLUIDS LTD.
STAR DEEP WATER
STATOIL (NIGERIA) LTD.
SUMMIT OIL LTD.  
SUNLINK PETROLEUM LTD.
SUN TRUST
SYNTROLEUM CORP.
TALEVERAS – MTM PETROLEUM SPV
TEAM TRADING REFINING LTD.
TECHNICAL SYSTEM ENGINEERING LTD.
TEXACO NIGERIA OUTER SHELF
TEXACO OVERSEAS (NIGERIA) PETROLEUM CO. ULTD.
TOTAL UPSTREAM (NIGERIA) LTD.
TRANSGULF
TRANSNATIONAL CORPORATION (TRANSCORP)
TRIAN ENERGY
TULIP ENERGY RESOURCES NIG. LTD.
TUSKAR RESOURCES
UNION ATLANTIC PET
VIDEOCON
VIVA METHANOL
VP ENERGY LTD.
WESTAFRICAN BITUMEN EMULSION CO. LTD.
WINOVER OIL & GAS LTD.
XL ATLANTIC EXPLORATION & PRODUCTION
YINKA FOLAWIYO PETROLEUM LTD.
ZENONJOVIS OIL & GAS LTD.
ZERIMA PETROLEUM LTD.

OML 01
OML 04
OML 05
OML 07
OML 11 (Ogoni)
OML 13
OML 14
OML 16
OML 17
OML 18
OML 19
OML 20
OML 21
OML 22
OML 23
OML 24
OML 25

OML 26
OML 27
OML 28
OML 29
OML 30
OML 31
OML 32
OML 33
OML 34
OML 35
OML 36
OML 38
OML 39
OML 40
OML 41
OML 42
OML 43

OML 44
OML 45
OML 46
OML 49
OML 50
OML 51
OML 52
OML 53
OML 54
OML 55
OML 56
OML 57
OML 58
OML 59
OML 60
OML 61
OML 62

OML 63
OML 64
OML 66
OML 67
OML 68
OML 69
OML 70
OML 71
OML 72
OML 74
OML 77
OML 79
OML 83
OML 84
OML 85
OML 86
OML 87

OML 88
OML 89
OML 90
OML 91
OML 95
OML 96
OML 98
OML 99
OML 100
OML 101
OML 102
OML 103
OML 104
OML 108
OML 109
OML 110
OML 111

OML 112 (OPL 469)
OML 113
OML 114 (former OPL 230)
OML 115
OML 117 (OPL 237)
OML 118 (former OPL 212)
OML 119 (OPL 91)
OML 120 & 121 (OPL 210)
OML 122 (OPL 460)
OML 123 (former OPL 98)
OML 124 (former OPL 118)
OML 128 (former OPL 217)
OML 129 (former OPL 218)
OML 130 (former OPL 246)
OML 131 (former OPL 220)

OPL 090
OPL 135
OPL 205
OPL 206
OPL 209
OPL 211
OPL 213
OPL 214
OPL 215
OPL 216
OPL 219
OPL 221
OPL 222

OPL 223
OPL 225
OPL 228
OPL 229
OPL 231
OPL 233
OPL 234
OPL 235
OPL 236
OPL 238
OPL 239
OPL 240
OPL 241
OPL 242

OPL 244
OPL 245
OPL 247
OPL 248
OPL 249
OPL 251
OPL 252
OPL 256
OPL 257
OPL 274
OPL 275
OPL 276 (former OML 14)
OPL 277

OPL 278
OPL 280
OPL 281
OPL 282
OPL 283
OPL 287
OPL 288
OPL 289
OPL 290
OPL 311
OPL 315
OPL 316
OPL 318
OPL 320

OPL 321
OPL 322
OPL 323
OPL 324
OPL 325
OPL 332
OPL 454
OPL 458
OPL 471
OPL 472
OPL 722
OPL 723
OPL 732

OPL 733
OPL 809
OPL 810
OPL 901
OPL 905
OPL 907
OPL 914
OPL 917

Abana
Abigborodo
Abiteye
Abo
Adanga
Adanga North
Adibawa
Adibawa North East / Edu
Adua
Afam
Afam Umuosi
Afia
Afiesere
Afremo / Meji
Agbada
Agbami
Agbara
Aghigho
Agwe
Ahia
Ajapa
Aje
Ajokpori
Ajuju
Akam
Akamba
Akaso
Akepo
Akpo
Akpor
Akri / Oguta
Akuba
Alakiri
Alaoma
Ameena Prospect
Amenam / Kpono
Amenam East
Amoji
Amukpe
Anieze
Anyala
Apara
Aparo
Aran 1
Aroh
Asabo
Asabo Y
Asaboro North
Asaramatoru
Asasa
Ashaka
Assa
Asuokpu
Ata 1
Atala
Awoba
Azuzuama
Batan
Belama
Bella
Beniboye North
Beniku
Benin River
Benisede

Bepa
Bilabri - Orobiri
Bobo
Bodo West
Bogi
Bolia
Bomu
Bonga
Bonga Nodes
Bonga North West
Bonga South West
Bonny
Bosi
Buguma Creek
Cawthorne Channel
Chota
Clough Creek
Cross River-1
Dawes Island
Delta
Delta South
Dibi
Diebu Creek
Doro
Ea
Ebegoro
Ebocha
Ebok 1
Ebubu
Ebughu and Extensions
Ede
Edikan
Edop
Efere prospect
Egbema
Egbema East
Egbema South
Egbema W
Egina
Egwa
Ejulebe
Ekanga /  Zafiro
Ekeh
Eko
Ekoli
Ekpe A
Ekpe B
Ekpe WW
Eku
Ekulama
Elelenwa
Emem
Enang
Enwhe
Erema
Eremor
Erha
Eriemu
Escravos
Escravos Beach
Esuk / Edidiana
Etan
Etelebou
Etim
Evwereni

Ewan
Forcados Yokri
Funiwa
Gbaran 1
Gbokoda
Giligili
HA2
HD1
Ibewa
Ibibio
Ibigwe
Ibot 1
Idama
Idoho
Idu
Igbolo
Igbuku
Ikija
Ikike
Ikong / Nkuku
Ima
Ime
Imo River
Inanga
Inda
Inim
Iroko
Isan
Isan W
Isimiri
Isobo
Isoko
Iyak
Iyak SE
Izombe
Jatumi
Jisike
Jokka
Jones Creek
Kahuna
Kalaekule
Kita North
Kito
Kokori
Kolo Creek
Korokoro
Krakama
Kwale
M’Bede
Madu
Makaraba
Malu
Matsogo
Mefa
Meji
Mejo 1
Meren
Mfem
Middleton
Mimbo
Mina
Nda
Nembe Creek
Ngboko 1

Ngolo
Nkali
Nkarika
Nnwa
North Apoi
North Oron
Nsiko
Nun River
Obagi
Obama
Obe
Obeakpu
Obele
Oben
Oben North
Obiafu
Obigbo
Obigbo North
Obio-1
Obodeti
Obodo
Obodugwa
Obokun 1
Obrikom
Odeama Creek
Odidi
Odudu
Odugri
Ofa
Ofon
Ofon South
Ogbainbiri
Ogbelle
Ogbogene
Ogbogene West
Ogbotobo
Ogedeh
Ogharefe
Oghareki
Ogini
Oguta
Ohaji South
Ohuru 3
Ojumole
Okaka prospect
Okan
Okan Waterflood
Okono
Okoro
Okpai
Okpoho
Okpoko
Okubie
Okuk 1
Okwok 1 (MKK 1)
Okwori
Okwori South
Olo
Olo West
Ologbo
Oloibiri
Olomoro
Oloye 1
Omerelu

Omuro
Onne
Opobo South
Opolo 2
Opuama
Opuekeba
Opukushi
Opukushi North
Oredo
Oriri
Oron West
Oroni
Orubiri
Oshi
Osicka
Oso
Ossu
Otamini
Otumara
Otuo
Owanare-1
Oyo
Oyot
Oza
Oziengbe South
Ozoro
Parabe
Pennington
Qua Ibo
Robertkiri
Rumuekpe
Ruta
Saghara
Samabri
Samabri East
Santa Barbara 1
Santa Barbara South
Sapele
Seagull Prospect
Sengana
Setu
Shango
Shokoloko
Sifon Prospect
Soku
Sonam
Stubb Creek
Tai
Tapa
Tebidaba
Tom Shot Bank
Tsekelewu
Tubu
Tuna
Ubeta
Ubeta Deep Prospect
Ubie
Ubit
Udiana
Ugada
Uge
Ughelli East
Ughelli West
Ukot

Ukpam
Ukpeme
Ukpokiti
Umuoru
Umusadege
Umusati
Umutu
Unam
Upomami
Uquo
Usan
Usari
Usoro
Utapate South
Utonana
Utorogu
Utue
Uyai Prospect
Uzere East
Uzere West
Warri River
Yoho
Yokuru 1
Yora
Yorla
Yorla South

OML 56
OPL 233
OPL 250
OPL 253
OPL 254
OPL 255
OPL 258
OPL 259
OPL 260
OPL 261
OPL 262
OPL 264
OPL 265
OPL 266
OPL 267
OPL 268
OPL 269
OPL 270

OPL 271
OPL 272
OPL 273
OPL 279
OPL 281
OPL 285
OPL 286
OPL 286-DO (formerly OPL 213)
OPL 289
OPL 292
OPL 298
OPL 312
OPL 313
OPL 314
OPL 317
OPL 319
OPL 327
OPL 328

OPL 329
OPL 330
OPL 331
OPL 333
OPL 334
OPL 335
OPL 336
OPL 337
OPL 338
OPL 339
OPL 340
OPL 341
OPL 342
OPL 343
OPL 344
OPL 345
OPL 346
OPL 471

OPL 704
OPL 706
OPL 708
OPL 709
OPL 710
OPL 711
OPL 720
OPL 721
OPL 732
OPL 734
OPL 735
OPL 802
OPL 803
OPL 804
OPL 806
OPL 807
OPL 808
OPL 811

OPL 813
OPL 814
OPL 815
OPL 816
OPL 819
OPL 823
OPL 841
OPL 902
OPL 903
OPL 904
OPL 906
OPL 908
OPL 909
OPL 910
OPL 911
OPL 912
OPL 913