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Worldwide Directory

Directory of Public Companies in Industry: Oil Well Services & Equipment A complete commercial credit report with financial statements is available for every company listed below, and for more than 40,000 public companies in our worldwide data base. But don't take our word for it. Examine a typical commercial credit report for free. We're sure you will agree that the quality of our commercial credit report is second to none. Note: Light grey text indicates a business whose financial statements are not current. Covering $49 trillion of revenue worldwide (World GDP is $70 trillion) # Company Name (sorted by Name) Country (click to sort by Country) State/Province 1. 3-D Geophysical, Inc. United States Colorado 2. 3DX Technologies Inc. United States Texas 3. A/S Dampskibsselskabet TORM Denmark   4. Abbot Group Plc UK   5. Ability Drilling ASA Norway   6. Acergy S.A. United Kingdom   7. Acergy S.A. (ADR) United Kingdom   8. ADG Global Supply Limited Australia   9. Advanced Holdings Limited Singapore   10. Aegis Logistics Limited India   11. Aeroquest International Limited Canada   12. AGR Group ASA Norway   13. AK Korvet OAO (P) Russia   14. Aker ASA Norway   15. Aker Drilling ASA Norway   16. Aker Floating Production ASA Norway   17. Aker Maritime ASA   Norway   18. Aker Solutions ASA Norway   19. AKITA Drilling Ltd. Canada   20. Aktyubinskiy zavod neftyanogo oborud. AO Kazakhstan   21. Allis-Chalmers Energy Inc. United States Texas 22. Alnas OAO (P) Russia   23. AMBAR, Incorporated   United States Louisiana 24. American International Industries, Inc. United States Texas 25. Aminex plc United Kingdom   26. Anadime Corporation   Canada   27. Annica Holdings Limited Singapore   28. Anton Oilfield Services (Group) Ltd. China   29. Anzon Australia Limited Australia   30. APL Plc Norway   31. Aqua-Terra Supply Co. Limited Singapore   32. Arcis Corporation Canada   33. Arethusa (Off-Shore) Ltd.   Bermuda   34. ARMAX GAZ SA Romania   35. Arrow Seismic ASA Norway   36. Arsenal Energy Inc. Canada   37. Asian Oilfield Services Ltd India   38. Atwood Oceanics, Inc. United States Texas 39. AusGroup Limited Singapore   40. Australian Oil and Gas Corporation Ltd.   Australia   41. Avatar Petroleum Inc.   Canada   42. Badger Daylighting Inc. Canada   43. Badger Explorer ASA Norway   44. Baker Hughes Incorporated United States Texas 45. Baker Technology Limited Singapore   46. Baltic Oil Terminals plc United Kingdom   47. Basic Energy Services United States Texas 48. Basic Energy Services, Inc United States Texas 49. Bateman Litwin N.V. Netherlands   50. Bayard Drilling Technol. United States Oklahoma 51. Bearcat Explorations Ltd.   Canada   52. Beijing Enterprises Holdings Limited Hong Kong   53. Belden & Blake Corp. United States Texas 54. Belden & Blake Corp. (OLD) United States Ohio 55. Best Energy Services, Inc. United States Texas 56. Beta Well Service, Inc.   Canada   57. Big Cat Energy Corporation United States Wyoming 58. BJ Services Company United States Texas 59. Bjorge ASA Norway   60. Black Diamond Group Ltd. Canada   61. Black Fire Minerals Limited Australia   62. BlackWatch Energy Services Corp Canada   63. Blast Energy Services Inc United States Texas 64. Blue Ensign Technologies Ltd. Australia   65. Blueknight Energy Partners L.P. United States Oklahoma 66. Bolt Technology Corp. United States Connecticut 67. Bonnett's Energy Services Trust Canada   68. Bonray Drilling Corp.   United States Oklahoma 69. Boots & Coots, Inc. United States Texas 70. Bourbon SA France   71. Bouygues Offshore S.A. (ADR)   France   72. Bowridge Resource Group   Canada   73. Brand Energy, Inc. United States Georgia 74. Brandrill Limited Australia   75. Bri-Chem Corp. Canada   76. Brilund Limited   United States Georgia 77. Bristow Group Inc. United States Texas 78. Bronco Drilling Company, Inc. United States Oklahoma 79. Buckeye GP Holdings L.P. United States Pennsylvania 80. Buckeye Partners, L.P. United States Pennsylvania 81. Builders Energy Services Trust Canada   82. Burgan Co for Well Drilling KSCC Kuwait   83. BW Offshore Limited Norway   84. C-Tech Energy Services Inc. Canada   85. Cal Dive International, Inc. United States Texas 86. Calfrac Well Services Ltd. Canada   87. Camco International, Inc. United States Texas 88. Cameron International Corporation United States Texas 89. Canadian Energy Services & Tech Corp Canada   90. Canadian Sub-Surface Energy Services Crp Canada   91. CanElson Drilling Inc. Canada   92. CanScot Resources Ltd.   Canada   93. Canyon Services Group Inc. Canada   94. Capital City Energy Group, Inc. United States Ohio 95. Capital Reserve Canada Ltd Canada   96. CARBO Ceramics Inc. United States Texas 97. Caspian Services Inc. United States Utah 98. Cathedral Energy Services Income Trust Canada   99. CCR Technologies Ltd. Canada   100. CCS Income Trust Canada   101. CDM Resource Partners, L.P. United States Texas 102. CE Franklin Ltd. Canada   103. CE Franklin Ltd. (USA) Canada   104. Ceanic Corporation   United States Texas 105. Cecon ASA Norway   106. Celtic Exploration Ltd. Canada   107. CGG Veritas France   108. CGG Veritas (ADR) France   109. Chiles Offshore Inc.   United States Texas 110. China Oilfield Services Limited China   111. China Oilfield Services Limited China   112. China Oilfield Technology Services Group Cayman Islands   113. Chinese People Holdings Company Limited China   114. Chuan Hup Holdings Limited Singapore   115. CIMC Enric Holdings Limited China   116. Cliffs Drilling Company   United States Texas 117. Clinton Gas Systems Inc.   United States Ohio 118. Clough Limited Australia   119. Collicutt Energy Services Ltd. Canada   120. Command Drilling Corp.   Canada   121. Compania Logistica de Hidrocarburos CLH Spain   122. Complete Production Services, Inc. United States Texas 123. Compressco Partners, L.P. United States Oklahoma 124. Computalog, Ltd.   Canada   125. Concentrated Capital Limited Australia   126. Concord Energy Inc. United States Texas 127. CONDMAG SA Romania   128. CONPET SA Romania   129. Consafe Offshore AB Sweden   130. Contracting & Marine Services Co. Kuwait   131. Corac Group plc United Kingdom   132. Core Laboratories N.V. Netherlands   133. Coretrack Limited Australia   134. Crested Corp. United States Wyoming 135. Crossfire Energy Services Inc. Canada   136. d'Amico International Shipping S.A. Luxembourg   137. DAFORA SA Romania   138. Dailey International, Inc United States Texas 139. Dawson Geophysical Company United States Texas 140. Dawson Production Serv. United States Texas 141. Dayang Enterprise Holdings Berhad Malaysia   142. Deep Down, Inc. United States Texas 143. Deep Industries Limited India   144. Deepwell Energy Services Trust Canada   145. Delek Energy Systems Ltd. Israel   146. Delek Resources Inc United States Florida 147. Deleum Berhad Malaysia   148. Destiny Resource Services Corp. Canada   149. Dialog Group Berhad Malaysia   150. Diamond Offshore Drilling, Inc. United States Texas 151. Dietswell SA France   152. Digger Resources Inc. Canada   153. Distribuidora de Gas Cuyana SA Argentina   154. Divestco Inc. Canada   155. DOAO Tsentrenergogaz OAO Gazprom Russia   156. DOF Subsea ASA Norway   157. Dolphin Offshore Enter. Ind Ltd (Parent) India   158. Dolphin Offshore Enterprises India Ltd. India   159. Dril-Quip, Inc. United States Texas 160. Drilex International Inc.   United States Texas 161. Drillers Technology Corp. Canada   162. Dual Drilling Company   United States Texas 163. Eagle Geophysical, Inc. United States   164. Eastern Drilling ASA Norway   165. Eastern Pacific Industrial Corp. Berhad Malaysia   166. ElectroMagnetic GeoServices ASA Norway   167. Elektrogaz OAO Gazprom DOAO (P) Russia   168. Emex Corporation United States Colorado 169. Enbridge Energy Partners, L.P. United States Texas 170. Enbridge Inc. Canada   171. Enbridge Inc. (USA) Canada   172. Energtek Inc United States New York 173. Energy & Technology Corp United States Louisiana 174. Energy Services of America Corp. United States West Virginia 175. Engineers India Limited India   176. Engineers India Limited (Parent) India   177. EnQuest Energy Services Corp. Canada   178. ENSCO International PLC United States Texas 179. Enseco Energy Services Corp. Canada   180. Enserco Energy Service Co   Canada   181. Ensign Energy Services Inc. Canada   182. EnSource Energy Services   Canada   183. Enterprise Oilfield Group, Inc. Canada   184. Environmental Energy Services, Inc. United States Idaho 185. EnviroXtract, Inc. United States Florida 186. EOC Limited Singapore   187. ERC Industries, Inc. United States Texas 188. Escondoro Resources Ltd. Canada   189. Essar Shipp. Ports & Log. Ltd. (Parent) India   190. Essential Energy Services Trust Canada   191. Eurasia Drilling Company Limited Cayman Islands   192. Eveready Inc Canada   193. Every Day Mine Services Limited Australia   194. Exploration Drilling International Germany   195. Exploration Resources ASA Norway   196. Expro International Group PLC United Kingdom   197. Exterran Holdings, Inc. United States Texas 198. Ezra Holdings Limited Singapore   199. Falcon Drilling Company United States Texas 200. Federal International (2000) Ltd. Singapore   201. First Seismic Corp.   United States Texas 202. Flint Energy Services Ltd. Canada   203. Flotek Industries, Inc. (OLD) United States Texas 204. FMC Technologies, Inc. United States Texas 205. Foraco International S.A. France   206. Forbes Energy Services Ltd. United States Texas 207. Forster Drilling Corporation United States Texas 208. Forum Oilfield Technologies, Inc. United States Texas 209. Franklin Supply Co. Ltd.   Canada   210. Fred. Olsen Energy ASA Norway   211. Fred. Olsen Production ASA Norway   212. Friede Goldman Halter United States Mississippi 213. Frigstad Discoverer Invest LTD Virgin Islands   214. Frontier Drilling AS Norway   215. Frontier Energy Corp. United States Nevada 216. Garneau Inc. Canada   217. Gazavtomatika OAO Russia   218. Gazavtomatika OAO (P) Russia   219. Gazprom promgaz OAO (P) Russia   220. Gazpromgeofizika OAO (P) Russia   221. Gazpromneft'-Noyabr'skneftegazg. OAO (P) Russia   222. Genoil Inc. Canada   223. Genoil Inc. (ADR) Canada   224. Geo Point Technologies Inc United States California 225. Geokinetics Inc. United States Texas 226. Georex S.A. France   227. GETECH Group Plc United Kingdom   228. GFI Oil & Gas Corporation United States Texas 229. Giprospetsgaz OAO (P) Russia   230. Giprovostokneft' OAO (P) Russia   231. Global Geophysical Services, Inc. United States Texas 232. Global Industries, Ltd. United States Louisiana 233. Global Mainframe Corp. Canada   234. Global Marine Energy plc UK   235. Global Marine Inc. United States Texas 236. Global Resource Corp. United States New Jersey 237. Global Rig Company ASA Norway   238. Global Tender Barges ASA Norway   239. GlobalSantaFe Corporation United States Texas 240. Golden Triangle Ind.(OLD)   United States Florida 241. GoldenOil Corporation South Korea   242. Grant Geophysical, Inc. United States Texas 243. Grant Prideco, Inc. United States Texas 244. Green Star Energies, Inc. United States Texas 245. Grey Wolf, Inc. United States Texas 246. Guideline Oil Drilling Technology AB Sweden   247. Gulf International Services QSC Qatar   248. Gulf Petroleum Investment Co KSCC Kuwait   249. GulfMark Offshore, Inc. United States Texas 250. Hai Leck Holdings Limited Singapore   251. Halliburton Company United States Texas 252. Hallin Marine Subsea International Plc United Kingdom   253. Hallwood Consol. Resource United States Colorado 254. Hardman Resources Limited Australia   255. Havila Ariel ASA Norway   256. Havila Shipping ASA Norway   257. Heatec JieTong Holdings Ltd Singapore   258. Helix Energy Solutions Group Inc. United States Texas 259. Helmerich & Payne, Inc. United States Oklahoma 260. Hengyang Petrochemical Logistics Ltd. Singapore   261. Hercules Offshore, Inc. United States Texas 262. Hiap Seng Engineering Ltd. Singapore   263. High Arctic Energy Services, Inc. Canada   264. Holly Energy Partners, L.P. United States Texas 265. Honghua Group Ltd China   266. Horizon North Logistics Inc. Canada   267. Horizon Offshore, Inc. United States Texas 268. Hunting plc United Kingdom   269. Hydril Company United States Texas 270. Hyduke Energy Services Inc. Canada   271. Hyperdynamics Corporation United States Texas 272. I.N.O.C-Dead Sea Limited Partnership Israel   273. IHS Inc. United States Colorado 274. Impax Energy Services Income Trust Canada   275. Imperial Oil Limited Canada   276. Imperial Oil Limited (USA) Canada   277. Infinity Energy Resources Inc. United States Colorado 278. Infrastrata PLC United Kingdom   279. Innicor Subsurface Technologies Inc. Canada   280. Insight Management Corporation United States California 281. Integra Group Russia   282. Integrated Production Svc   Canada   283. ION Geophysical Corporation United States Texas 284. IRI International Corp. United States Texas 285. IROC Energy Services Corp. Canada   286. IWATANI CORPORATION Japan   287. Izhneftemash OAO (P) Russia   288. Izhorskiye zavody OAO (P) Russia   289. Jadranski Naftovod d.d. Croatia   290. Japan Drilling Co., Ltd. Japan   291. Jasper Investments Limited Singapore   292. Jiangxi Hongcheng Waterworks Co., Ltd. China   293. Jindal Drilling Industries Ltd India   294. Jutal Offshore Oil Services Limited Hong Kong   295. Kaneb Pipe Line Partners United States Texas 296. Kazakhstan Petrochemical Industries AO Kazakhstan   297. Kejuruteraan Samudra Timur Berhad Malaysia   298. Kelman Technologies Canada   299. Kencana Petroleum Berhad Malaysia   300. Kentz Corporation Limited United Kingdom   301. Key Energy Services, Inc. United States Texas 302. Khantymansiyskgeofizika OAO (P) Russia   303. Kinder Morgan Management, LLC United States Texas 304. Kinetex Resources Corp Canada   305. Kingdream Public Limited Company China   306. KKB Engineering Berhad Malaysia   307. KNM Group Berhad Malaysia   308. Koike Sanso Kogyo Co., Ltd. Japan   309. KOPEX SA Poland   310. Korea Technology Industry Co., Ltd. South Korea   311. Korporatsiya Ordabasy AO Kazakhstan   312. Kostromaoblgaz OAO (P) Russia   313. Krasnoyarskgeologiya OAO Russia   314. KS Energy Services Limited Singapore   315. KTL Global Limited Singapore   316. KUB Malaysia Berhad Malaysia   317. Kuybyshevnefteorgsintez OAO (P) Russia   318. Kvaerner ASA Norway   319. Lamprell Plc Isle of Man   320. Landdrill International Inc. Canada   321. Laniuk Industries Inc. Canada   322. Lapidoth Israel Oil Prospectors Co. Ltd. Israel   323. Latex Resources, Inc.   United States Oklahoma 324. Leader Energy Services Ltd. Canada   325. Lenaneftegaz OAO   Russia   326. LoneStar West Inc Canada   327. Lubricantes Paraguayos SAECA Paraguay   328. Lucent Oil AB Sweden   329. Lufkin Industries, Inc. United States Texas 330. Lupus Capital plc United Kingdom   331. Lyric International, Inc. United States Texas 332. M3nergy Berhad Malaysia   333. Macro Enterprises Inc. Canada   334. Madison Oil Company   United States Texas 335. Magellan Midstream Holdings, L.P. United States Oklahoma 336. Magellan Midstream Partners, L.P. United States Oklahoma 337. Magnus Energy Group Ltd. Singapore   338. Major Drilling Group Int'l Inc. Canada   339. Man Industries (India) Limited India   340. Marine Drilling Co., Inc.   United States Texas 341. Maritime Industrial Services Co. Ltd Inc United Arab Emirates   342. Matrix Composites & Engineering Limited Australia   343. McDermott International United States Texas 344. Medserv p.l.c. Malta   345. Mermaid Maritime Public Company Limited Thailand   346. Micron Enviro Systems, Inc. United States New York 347. Millennia, Inc. United States Texas 348. Mineral Resources Limited Australia   349. Mirach Energy Limited China   350. Monitor Oil PLC United Kingdom   351. Mosteploset'energoremont OAO (P) Russia   352. Mostostal Gdansk SA   Poland   353. MPF Corp Ltd. Bermuda   354. MPK Aganneftegazgeologiya OAO (P)   Russia   355. MTQ Corporation Limited Singapore   356. Mullen Group Income Fund Canada   357. Nabors Exchangeco (Canada) Inc. Bermuda   358. Nabors Industries Ltd. Bermuda   359. Naphtha Israel Petroleum Corporation Ltd Israel   360. NATCO Group Inc. United States Texas 361. National Petroleum Services Company Kuwait   362. National-Oilwell Varco, Inc. United States Texas 363. Natural Gas Services Group, Inc. United States Texas 364. Neftegazspetsstroy OAO (P) Russia   365. Neftemash OAO (P) Russia   366. Nelson Resources Limited UK   367. Newpark Resources, Inc. United States Texas 368. NIPIgazpererabotka OAO (P)   Russia   369. Noble Corporation United States Texas 370. NOR Offshore Ltd Singapore   371. North American Energy Partners Inc. Canada   372. North American Energy Partners Inc.(USA) Canada   373. Northern Offshore Ltd. United States Texas 374. Northstar Drilling System   Canada   375. Norton Drilling Services   United States Texas 376. Nowsco Well Service, Ltd.   Canada   377. NPO Promavtomatika OAO (P) Russia   378. NUMAR Corporation   United States Pennsylvania 379. NuStar Energy L.P. United States Texas 380. NuStar GP Holdings, LLC United States Texas 381. NV Nederlandse Gasunie Netherlands   382. NXT Energy Solutions Inc. Canada   383. Ocean Rig ASA Norway   384. Oceaneering International United States Texas 385. Oceanteam ASA Norway   386. Odfjell Invest Ltd Bermuda   387. Odim Hitec ASA Norway   388. Offshore Hydrocarbon Mapping Plc United Kingdom   389. Offshore Navigation   United States Louisiana 390. Offshore Tool & Energy Corporation United States Alabama 391. Oil Country Tubular Ltd India   392. Oil States International, Inc. United States Texas 393. OMNI Energy Services Corp. United States Louisiana 394. Opti Canada Inc. Canada   395. Orbit Garant Drilling Inc. Canada   396. Orgenergogaz DOAO (P) Russia   397. OSCA, Inc. United States Louisiana 398. OSX BRASIL SA Brazil   399. OZNA AK OAO (P) Russia   400. Pacific Energy Partners, L.P. United States California 401. Pantera Drilling Income Trust Canada   402. Parker Drilling Company United States Texas 403. Particle Drilling Technologies, Inc. United States Texas 404. Pason Systems Inc. Canada   405. Patterson Energy, Inc.   United States Texas 406. Patterson-UTI Energy, Inc. United States Texas 407. Pe Ben Oilfield Services Ltd. Canada   408. Peak Energy Services Trust Canada   409. PearlStreet Limited Australia   410. Penn Virginia GP Holdings, L.P. United States Pennsylvania 411. Perisai Petroleum Teknologi Berhad Malaysia   412. Petra Energy Berhad Malaysia   413. Petra Perdana Berhad Malaysia   414. PetroFina S.A. (ADR)   Belgium   415. Petrojack ASA Norway   416. PetroKazakhstan Inc. Canada   417. PetroKazakhstan Inc. (USA) Canada   418. Petroleum Geo-Services ASA Norway   419. Petroleum Geo-Services ASA (ADR) Norway   420. Petroleum Long Champ (Group) Co., Ltd. China   421. Petrolia Drilling ASA Norway   422. Petrolimex Joint Stock Tanker Company Vietnam   423. PetroMENA ASA Norway   424. PetroProd Ltd. Singapore   425. Petrovietnam Drilling & Well Services Vietnam   426. Petrovietnam Technical Services Corp Vietnam   427. Petrowest Energy Services Trust Canada   428. PHI Inc. United States Louisiana 429. Phoenix Technology Income Fund Canada   430. Pioneer Drilling Company United States Texas 431. Plains All American Pipeline, L.P. United States Texas 432. Plains GP Holdings, L.P United States Texas 433. Plexus Holdings PLC United Kingdom   434. Polyard Petroleum International Grup Ltd Hong Kong   435. Ponder Industries, Inc. United States Texas 436. Pool Energy Services Co. United States Texas 437. PowerSecure International, Inc. United States North Carolina 438. Precision Drilling Trust Canada   439. Precision Drilling Trust (USA) Canada   440. Pride International, Inc. United States Texas 441. Pride International, Inc.(OLD) United States Texas 442. Producers Oilfield Services Inc. Canada   443. Production Enhancement Group Inc. United States Texas 444. Production Operators Corp   United States Texas 445. Prosafe SE Cyprus   446. PT Citra Tubindo Tbk Indonesia   447. PT Indika Energy Tbk Indonesia   448. PT Indonesia Air Transport Tbk Indonesia   449. PT Mitra International Resources Tbk Indonesia   450. PT Radiant Utama Interinsco Tbk Indonesia   451. PT Ratu Prabu Energi Tbk Indonesia   452. Pulse Data Inc. Canada   453. QuestAir Technologies Inc. Canada   454. QUESTAR MARKET RESOURCES INC United States Utah 455. R H Energy Limited Singapore   456. R&B Falcon Corp. United States Texas 457. Ramunia Holdings Berhad Malaysia   458. Ranchgate Energy Inc. Canada   459. Reading & Bates Corp.   United States Texas 460. Real Time Measurements Inc. Canada   461. Recon Technology, Ltd. United States   462. Refinery Science Corp. United States Texas 463. Regency Energy Partners LP United States Texas 464. REM Offshore ASA Norway   465. Remedial (Cyprus) PCL Cyprus   466. Remora ASA Norway   467. Reservoir Exploration Technology ASA Norway   468. Resilient Resources Ltd. Canada   469. Rheochem plc Australia   470. RMS Systems, Inc. Canada   471. Rocky Mountain Energy Corp. Canada   472. Rompetrol Well Services SA Romania   473. Rosneft'-Tuapsenefteprodukt NK (P)   Russia   474. Rosneftegazstroy RAO OAO (P) Russia   475. Rowan Companies, Inc. United States Texas 476. Roxar ASA Norway   477. Roxi Petroleum plc United Kingdom   478. Royal Quantum Group, Inc. Canada   479. RPC, Inc. United States Georgia 480. Running Fox Resource Corp. Canada   481. Ruzkhimmash OAO (P) Russia   482. Ryan Energy Technologies   Canada   483. SAAG Consolidated (M) Berhad Malaysia   484. Safat Energy Holding Co KSCC Kuwait   485. Saipem SpA Italy   486. Samaraneftegeofizika OAO (P)   Russia   487. Santa Fe Pacific Pipeline   United States California 488. Sapura Technology Berhad Malaysia   489. Saratovneftegeofizika OAO (P) Russia   490. Savanna Energy Services Corp. Canada   491. Saxon Energy Services Inc. Canada   492. SBI Offshore Limited Singapore   493. SBM Offshore N.V. Netherlands   494. Schlumberger Limited United States Texas 495. Schoeller-Bleckmann Oilfield Equip. AG Austria   496. Scomi Group Berhad Malaysia   497. Scorpion Offshore Ltd Bermuda   498. SeaBird Exploration Limited Norway   499. SeaDrill Invest Ltd. Bermuda   500. SeaDrill Limited Bermuda   501. Seahawk Drilling, Inc. United States Texas 502. Seajacks International Ltd. Bermuda   503. SeaMetric International AS Norway   504. Seaway Energy Services Inc. Canada   505. Seawell Ltd Bermuda   506. Secunda International Limited Canada   507. Secure Energy Services Inc   Canada   508. See Hup Seng Limited Singapore   509. Seitel, Inc. United States Texas 510. SES Slovenske Energeticke Strojarne a.s. Slovakia   511. Set Point Group Limited South Africa   512. Sevan Marine ASA Norway   513. Seventh Energy Ltd. Canada   514. Severtruboprovodstroy OAO (P) Russia   515. Shannon International Inc. Canada   516. Sheridan Energy, Inc. United States Texas 517. Shiv Vani Oil & Gas Expl Service Ltd (P) India   518. Shiv Vani Oil & Gas Expl Services Ltd. India   519. Sibneftegeofizika OAO Russia   520. Sibtruboprovodstroy OAO (P) Russia   521. Siem Industries, Inc.   Bermuda   522. Siem Offshore Inc. Cayman Islands   523. Silver Star Energy, Inc. United States California 524. Sime Engineering Services Berhad Malaysia   525. SKY China Petroleum Services Ltd. Singapore   526. Slavneft-Megionneftegazgeologiya OAO (P) Russia   527. Smedvig ASA Norway   528. Smedvig ASA (ADR) Norway   529. Smith International, Inc. United States Texas 530. Solana Petroleum Corp.   Canada   531. Solstad Offshore ASA Norway   532. Sondex plc UK   533. South Shore Resources, Inc. Trinidad and Tobago   534. Sovereign Exploration Associates Int Inc United States Pennsylvania 535. Sovereign Oilfield Group Plc United Kingdom   536. Spearhead Resources Inc. Canada   537. Spectrum ASA Norway   538. Stallion Oilfield Services, Ltd. United States Texas 539. Star Energy Group plc UK   540. Ste Trans. Hydrocarbures par Pipelines Tunisia   541. Stewart & Stevenson LLC United States Texas 542. Stoneham Drilling Trust Canada   543. Suelopetrol C.A., S.A.C.A. Venezuela   544. Sums'ke NVO im.M.V.Frunze VAT Ukraine   545. Sunoco Logistics Partners L.P. United States Pennsylvania 546. Superior Energy Services United States Louisiana 547. Superior Energy Services, Inc. United States Louisiana 548. Superior Offshore International, Inc. United States Texas 549. Superior Well Services, Inc. United States Pennsylvania 550. Swede Resources AB (publ) Sweden   551. Swissco International Limited Singapore   552. T-3 Energy Services, Inc. United States Texas 553. Tanjung Offshore Berhad Malaysia   554. Tatneftegeofizika OAO (P) Russia   555. Technicoil Corporation Canada   556. Technics Oil & Gas Limited Singapore   557. Technip France   558. Technip (ADR) France   559. Tecnicas Reunidas SA Spain   560. Teekay Offshore Partners L.P. Bermuda   561. Teekay Petrojarl ASA Norway   562. Teho International Inc Ltd Singapore   563. Tempest Energy Corp. Canada   564. TEPPCO Partners, L.P. United States Texas 565. TEPPCO Partners, L.P. United States Texas 566. Terra Energy & Resource Tech., Inc. United States New York 567. Tesco Corporation United States Texas 568. Tesco Corporation (USA) United States Virginia 569. TETRA Technologies, Inc. United States Texas 570. TGC Industries, Inc. United States Texas 571. TGS-NOPEC Geophysical Company ASA Norway   572. Thalassa Holdings Limited Virgin Islands, United States   573. The Home-Stake Oil & Gas United States Oklahoma 574. The Western Co. of N.A.   United States Texas 575. Thule Drilling ASA Norway   576. Thunder Energy Trust Canada   577. TMBR/Sharp Drilling, Inc. United States Texas 578. TODCO United States Texas 579. Tomskgazstroy OAO (P) Russia   580. Torch Offshore, Inc. United States Louisiana 581. Tornado Technologies Inc Canada   582. TransCoastal Marine Srvc. United States Texas 583. TransMontaigne Partners L.P. United States Colorado 584. Transneft' AK OAO Russia   585. Transneft' AK OAO (P) Russia   586. Transnefteprodukt OAO (P) Russia   587. Transocean LTD Switzerland   588. Transocean, Inc. United States   589. Trican Well Service Ltd. Canada   590. TSM Tech Co., Ltd. South Korea   591. Tucker Drilling Company   United States Texas 592. Tulaoblgaz OAO (P)   Russia   593. Tyumenneftegeofizika OAO (P) Russia   594. U.S. Oil and Gas Resources Inc. Canada   595. Udmurtgeologiya OAO (P) Russia   596. Union Drilling, Inc. United States Texas 597. Union Drilling, Inc. United States Pennsylvania 598. Unit Corporation United States Oklahoma 599. Universal Seismic Assoc. United States Texas 600. Upet SA Romania   601. Uralmash-Izhora Group OMZ OAO Russia   602. Uralmash-Izhora Group OMZ OAO (P) Russia   603. Uraltekhnostroy-Tuymazykhimmash (P) Russia   604. Usinskgeoneft' OAO (P)   Russia   605. UTI Energy Corp.   United States Texas 606. Uzma Berhad Malaysia   607. Uztel SA Romania   608. Vantage Drilling Company United States Texas 609. Varco Int'l, Inc. (OLD) United States California 610. Varco International, Inc. United States Texas 611. Ventspils Nafta AS Latvia   612. Venture Seismic Ltd.   Canada   613. Veritas DGC Inc. United States Texas 614. VGS Seismic Canada Inc. Canada   615. Viracocha Energy Inc. Canada   616. VNIPIgazdobycha OAO (P) Russia   617. Volgogradneftegeofizika OAO (P)   Russia   618. Vostokgeologiya OAO (P) Russia   619. Vulcan SA Romania   620. W-H Energy Services, Inc. United States Texas 621. Wah Seong Corporation Berhad Malaysia   622. Warrior Energy Services Corporation United States Mississippi 623. Wavefield Inseis ASA Norway   624. WDS Limited Australia   625. Weatherford Enterra, Inc. United States Texas 626. Weatherford International (OLD) United States Texas 627. Weatherford International LTD. Switzerland   628. Wellco Energy Services Trust Canada   629. Wellstream Holdings PLC United Kingdom   630. Welton Energy Corporation Canada   631. Wentworth Energy Inc United States Texas 632. Wenzel Downhole Tools Ltd. Canada   633. Wescorp Energy Inc. Canada   634. Western Atlas, Inc. United States Texas 635. Western Energy Services Corp. Canada   636. Western Lakota Energy Services Inc. Canada   637. Willbros Group, Inc. United States Texas 638. Wood Group (John) plc United Kingdom   639. WSP Holdings Limited China   640. Xinjiang Zhundong Petroleum Tech Co Ltd China   641. Xtreme Coil Drilling Corp. Canada   642. Yantai Raffles Shipyard PTE Ltd. China   643. YT Jereh Oilfield Services Group Co.,Ltd China   644. Yuggazservis OAO (P) Russia   645. Zapsibgazprom OAO (P) Russia   646. Zedi Inc. Canada   647. Zone Resources Inc. Canada   648. Zorin Exploration Ltd. Canada