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(Click for frequent words.) 58 Minesadco 54 Los Pelambres copper 53 Canaguaro Block 52 Cerro Verde copper 51 Juan Rebolledo 51 Mauro Valdes 50 BHP Escondida 49 ASX BLY 49 La Falda Project 49 Alejandro Pino 48 Bridas Energy 48 Los mineros de 48 Rosablanca 48 giant Collahuasi copper 48 contractor GlobalSantaFe 48 Industrial Minera 47 Escondida copper 47 PetroLatina 47 Codelco Norte division 46 de Collahuasi 46 Odfjell Drilling 46 subsidiary Barrick Goldstrike 46 La Caridad copper 46 SeaDrill Ltd. 46 Eklund Drilling 46 Codelco Chile 45 Gold Fields Kloof 45 Antamina copper zinc 45 Codelco Norte 45 La Preciosa killer 45 spokesman Lou Schack 45 Dolphin Drilling 45 Collahuasi copper mine 45 Boart Longyear 45 Nabors Drilling 45 Energold 45 Ruben Escudero 44 Spinnaker Exploration Company 44 sister Maria Buenrostro 44 Los Pelambres mine 44 Codelco El Teniente 44 Casa Negra mine 44 Transocean Deepwater 44 Brazauro Resources 44 Hernandez Carlos Payan 44 Mantoverde 44 Tautona mine 44 Chuquicamata mine 44 Cuajone mines 43 Mark Popernack 43 NHM SJ 43 Harmony Elandsrand mine 43 CDX Gas 43 Montello Resources 43 Drilling Contractor 43 shouted Gracias 43 giant Chuquicamata mine 43 mineros 43 Zhang Jinguang 43 leased Deepwater Horizon 43 Loma Gorda 43 Doyon Drilling 43 DualEx Energy 43 Elandsrand Mine 42 engineer Andre Sougarret 42 submersible rig 42 Cabo Drilling 42 UtahAmerican Energy 42 Talisman Energy Norge AS 42 Urzúa 42 Harmony Gold Elandsrand 42 Dave Feickert 42 Escondida copper mine 42 Osyka Corporation 42 miner Juan Illanes 42 George Baywong 42 Oswell Munyenyembe 42 Maersk Drilling 42 Los Pelambres 42 Escondida mine 42 Copiapó Chile 42 Carlos Mamani Solis 42 Amerisur 42 Vastar Resources 42 ZPEB 42 Talisman Energy TLM 41 ATWOOD OCEANICS INC. 41 Galleguillos 41 OGX 2A 41 Toroa prospect 41 Gold Fields Driefontein 41 Buffelsfontein mine 41 Apco Oil 41 Cabo Drilling Corp. 41 Boart Longyear Ltd 41 spokesman Ilja Graulich 41 Susse Albonico 41 BJ Tubular Services 41 Chile Escondida copper 41 La Preciosa 41 Orbit Garant Drilling 41 supermajor ExxonMobil 41 contractor Nabors Industries 41 appraisal sidetrack 41 Elizabeth Segovia 41 Prokurica 41 hydrocarbon bearing sandstones 41 El Teniente mine 41 Miners Rescued 41 manager Stan Bierschenk 41 Portovelo 41 Bodee Allred 41 Cheremnov 41 Perforadora Central 41 Hecla Mining Co. 41 COPIAPO Chile Reuters 41 La Preciosa mine 41 OGX OGXP3.SA 40 Hilcorp Energy 40 Nabors Drilling USA 40 NYSE GSF 40 largest borate mine 40 contractor Atwood Oceanics 40 Newmont Mining Corp 40 Chile Escondida 40 Halliburton HAL.N 40 NovaGold Resources 40 Engineer Husnu Unal 40 Elixir Petroleum 40 Ávalos 40 Drilling 40 driller Ensco International 40 Los Bronces mine 40 Punta del Cobre 40 mine 40 PetroLatina Energy 40 Japan catcher Yukiyo 40 Ore Reserves Engineering 40 Akri Bijeel block 40 Altonorte copper smelter 40 Sedco Forex 40 Collahuasi mine 40 Sergio Robles 40 Ammazzo 40 mine Escondida 40 Transocean Ltd RIG.N 40 mine Andre Sougarret 40 Stratic Energy Corporation 40 Kluane Drilling 40 Vantage Drilling 40 Boart 40 Vanco Energy 40 Orca Exploration 40 Chile Collahuasi copper 40 Nexen Petroleum 40 Talisman TSX TLM 40 Lou Schack 40 semisubmersible drilling rig 40 Eagleford Energy 39 Bolivian Carlos Mamani 39 driller 39 Luis Urzúa 39 union Lesiba Seshoka 39 Newmont Mining Corp NEM.N 39 Bulford Dolphin 39 God bless Sago 39 contractor Transocean Ltd. 39 Statoil STL.OL Quote 39 Transocean RIG.N 39 Andre Sougarret 39 petroleum geoscience programs 39 roughnecks struggled 39 San Telmo Energy 39 Petrolifera Petroleum 39 Trapped miners 39 Sardinata 39 La Caridad 39 miner 39 Lundin Petroleum AB 39 Discoverer Spirit 39 Spokeswoman Amy Louviere 39 Queenstake Resources 39 Belford Dolphin drillship 39 Supt Knowles 39 Layne Christensen 39 Newfield Exploration Mid Continent 39 AusTex Oil 39 ProspEx Resources 39 mistress Susana Valenzuela 39 Nigerian Agip Exploration 39 BRG Petroleum 39 RIG.N 39 BP BP.L Quote 39 Frontera Resources 39 Rheochem PLC 39 Amoco Production 39 Kalegran 39 Cananea copper mine 39 Seacor 39 Collahuasi 39 Rene Aguilar 39 Samson Lone Star 39 Directional Drilling 39 Petroleum Norge AS 39 Drilling Fluids 39 Eva Vergara 39 cased hole 39 BNK Petroleum 38 Meikle mine 38 Ponce Enriquez 38 Trapped miner 38 Anadarko Petroleum APC.N 38 Crocotta Energy 38 Hallin Marine 38 Tau Tona 38 Jose Henriquez 38 Secretary Laurence Goldborne 38 Andina mines 38 Nighthawk Energy 38 coal blackened overalls 38 lady Cecilia Morel 38 Petrogen Corp. 38 Eurasia Drilling 38 Boton de Oro 38 Hecla Mining Company 38 sidetrack appraisal 38 KCA Deutag 38 defender Mauricio Isla 38 spokesman Dirk Fillpot 38 Tuboscope 38 Gyrodata 38 TXCO Resources 38 Transocean Deepwater Horizon 38 Ensco Offshore Co. 38 Quecreek survivor 38 Alange Energy 38 Austral Pacific Energy 38 Petrobank 38 Nexen NXY 38 Occidental Petroleum Corp 38 Incremental Petroleum 38 Contacts Trelawney Mining 38 Raul Bustos 38 Petsec Energy 38 Kevin Neveu 38 NEG Operating 38 Gustavson Associates 38 explorationist 38 Dhirubhai Deepwater KG2 38 Milagro Exploration 38 TransOcean 38 Ostrowiec 38 Andarko Petroleum 38 Norcen Energy Resources 38 Daping coal 38 Ruen Drilling 38 giant Collahuasi mine 38 Collahuasi Chile 38 Richard Villarroel 38 mineworkers union 38 LaRonde Extension 38 Buckskin Mesa 38 Edison Peña 38 CAToil 38 Transocean semi submersible 38 Spinnaker Exploration 38 EOG Resources Inc EOG.N 37 At nightfall Strovink 37 miner Omar Reygadas 37 Petroneft Resources 37 Lisewo 37 drill rig 37 Yonni Barrios 37 KCA Deutag Drilling 37 Jack Grynberg 37 Genwal Mine 37 mining 37 Chilean miners 37 Marta Salinas 37 Inc DO.N 37 Elandsrand mine 37 Petrophysical 37 newbuild jackup 37 Seacor Holdings Inc. 37 Stratic Energy 37 Escondida 37 Oilex Ltd 37 Lona O 37 Trapped Miners 37 Chileans reveled Thursday 37 TransGlobe Energy 37 TSX CVE 37 Atwood Oceanics Inc. 37 BHP Billiton Escondida 37 Rescuer Zhao Chuan 37 Minister Laurence Goldborne 37 Maritech Resources 37 Dewatering 37 Vaalco 37 Blackford Dolphin 37 told Ecuavisa television 37 Hercules Offshore Inc 37 Anadarko Petroleum Corp APC.N 37 Hercules Offshore 37 Heilongjiang Longmei Mining 37 Jean Romagnoli 37 sniffer dogs probed 37 Eirik Raude 37 Precision Drilling Trust PD u.TO 37 driller Transocean 37 Mirador formation 37 Serica Energy 37 Fugro 37 subsidiary Exxon Neftegas 37 Indigo Minerals 37 Zbigniew Madej spokesman 37 operated horizontal wells 37 Gary Flaharty 37 BPZ 37 Goldcorp El Sauzal 37 Baraka Petroleum 37 OAO Yuzhkuzbassugol 37 Yonny Barrios 37 Coogee Resources 37 Glen Rose Porosity 37 Noble Corp NE.N 37 Cequence Energy 37 Empyrean Energy 37 Aban Abraham 37 Cananea mine 37 Atwood Oceanics Inc 37 Mponeng mine 37 Tony Kokshoorn mayor 37 Veritas DGC 37 Zosh Road 37 Transocean semisubmersible 37 Parnaiba basin 37 Queenston Mining 37 Tecton 37 Shell RDSa.L Quote 37 Nganzi block 37 APC.N Quote Profile Research 36 Bois d' Arc's 36 Drilling Rig 36 GlobalSantaFe Corporation 36 Chiguiro Este 36 maker Vetco Gray 36 miner Ariel Ticona 36 Kroondal mine 36 Sougarret 36 Nextraction Energy 36 Scotia Waterous 36 Nockatunga 36 Coretrack 36 Chilean miners trapped 36 manager Bodee Allred 36 Minister Carlos Rodado 36 Occidental NYSE OXY 36 frigid Heilongjiang province 36 near Carletonville 36 dug narrow passageway 36 BP.L Quote Profile Research 36 Codelco 36 owned Codelco 36 Gustavo Servino 36 Nitro Petroleum 36 drilling 36 Juan Carlos Aguilar 36 Roc Oil 36 Deepwater Tano Block 36 driller Rowan 36 geologist 36 SAN JOSE MINE CHILE 36 Reygadas 36 Calfrac Well Services 36 BEACONSFIELD Australia Two 36 Apache Corp APA.N 36 mines 36 Elizabeth Pellegrin 36 Granite Wash formation 36 Statoil ASA Norway 36 Slawson Exploration 36 Joseph Anayasan 36 semisubmersible rig 36 Knotty Head 36 Sernageomin 36 Lebork S 1 36 2 #/#-inch-wide hole 36 Uranerz Energy 36 TauTona 36 Mine 36 Nabors Industries Ltd NBR.N 36 Nomac Drilling 36 plc NYSE ESV 36 Harvest Natural Resources 36 UK supermajor BP 36 Anxin Coal Mining 36 Chuquicamata 36 Brazos Electric Cooperative 36 Alberto Avalos 36 Montara oilfield 36 miners Mario Sepulveda 36 Talisman TLM 36 Verdisys 36 Presco 36 administrator Ruben Escudero 36 West Timmins Mining 36 Freestone Resources 36 Weatherford NYSE WFT 36 OTCBB BSIC 36 Sago explosion 35 trapped miners 35 PetroQuest Energy 35 David Feickert coal 35 Belle Ayr 35 BPâ 35 Block L#/# 35 Stena Drilling 35 Claudio Yanez 35 Nasdaq LAYN 35 Keathley Canyon block 35 ConocoPhillips COP.N 35 horizontal Barnett Shale 35 Vetco Gray 35 Toreador Resources Corp. 35 Rowan Cos Inc 35 Stena Forth 35 Sangshuping town 35 Ensco NYSE ESV 35 Melanie Hennessey 35 Elandsrand 35 Clyde Boudreaux 35 Susana Valenzuela 35 Schlumberger Oilfield Services 35 Muthero 35 CNOOC #.HK 35 Ron Grall 35 director Peter Cicmanec 35 Brigham Exploration Co. 35 Statoil STO 35 Songa Offshore 35 DNO ASA 35 Chenjiashan 35 Pablo Rojas 35 NYSE ATW 35 HUNTINGTON UTAH 35 Successfully Drills 35 miners 35 Frac Tech 35 capsule peeked above 35 ultra deepwater semisubmersible drilling 35 Resaca Exploitation Inc. 35 Terax Energy 35 ultra deepwater rig 35 Gene Kitts 35 El Mercurio newspaper 35 geosteering 35 directional drilling 35 Baker Hughes BHI.N 35 Groundstar Resources Ltd. 35 Quinn 3H 35 Illanes 35 Wang Dexue deputy 35 semisub 35 TBX Resources Inc. 35 Welder Ranch 35 Salvador Jimenez 35 Amerada Hess AHC 35 Cairn Energy PLC CNE.LN 35 Rescued miner 35 TriAxon 35 Transocean drillship 35 BP Plc BP.N 35 Beaconsfield Mine 35 underground 35 Carlos Payan Brandon 35 drill 35 semi submersible drilling rigs 35 Quail Tools 35 workover rig 35 TETRA Technologies 35 miner Ariel Tiscona 35 Aminex 35 capsule partway 35 Northrock Resources Ltd. 35 Trican Well Service 35 Sapphire Driller 35 Pan Andean 35 Pampalo 35 conventionally moored 35 Trapped Chilean miners 35 premium jackup rigs 35 Dominico Bollini 35 Exco Resources 34 FormCap 34 LON RRL 34 Vaalco Energy 34 COPIAPO Chile Chile 34 Furmanite 34 ONGC ONGC.BO 34 owner Guo Yungang 34 Atwood Oceanics 34 Te Giac Den 34 Antero Resources 34 drilling rig 34 Northam Platinum 34 Chile 34 Liliana Ramirez 34 Sedco Express 34 jackup ENSCO 34 spokesman Randy Teeuwen 34 Paradox Basin Project 34 miner Florencio Avalos 34 Petsec 34 TSX V TAO 34 bearing sandstones 34 Martex Prospect 34 Halliburton Co HAL.N 34 Calfrac 34 Blyvooruitzicht mine 34 GlobalSantaFe Corp. 34 Bruce Watzman 34 Cnooc Ltd. China 34 Denver Julesburg basin 34 Laurence Golborne 34 Drillers neared 34 Rheochem 34 Reichmann Petroleum 34 Ensco International 34 Chilean miners rescued 34 PBS Coals Quecreek Mine 34 Murta Member 34 Haynesville wells 34 booby trapped bunker 34 Carnarvon Petroleum 34 San Jingguang 34 underground workings 34 Mark Hafle BP 34 Sanish wells 34 Caza Oil 34 MASS Petroleum 34 Dirk Fillpot 34 Siberia Kemerovo region 34 net Cardium horizontal 34 Talisman Energy Inc 34 Gulfsands Petroleum 34 farmee 34 Rowan RDC 34 Mars lander prepares 34 Schlumberger SLB.N 34 Mario Sepúlveda 34 Layne Christensen Co. 34 Yuzhkuzbassugol 34 drilled 34 Xinxing coal 34 Trapped W.Va. 34 semi submersible rig 34 Dotiki 34 miner Carlos Mamani 34 Aracoma Coal 34 EnCana ECA 34 Jiu Valley 34 Uddyback Fortson 34 Beaconsfield goldmine 34 Leni Gas 34 AGR Peak 34 Upper Mirador 34 oilwell 34 Statoil Norway 34 Sunjiawan colliery 33 anthracite mine 33 Archer Wildlands # 33 Drilling Rig # 33 LKC interval n 33 Leed Petroleum 33 Hallin Marine Subsea 33 Al Jariya 33 driller Diamond Offshore 33 Todco 33 SandRidge Energy Inc 33 exploration 33 Statoilhydro 33 underground coal seams 33 Royale Energy 33 ET 7H 33 Maria Segovia 33 horizontal Bakken wells 33 wellsite 33 secretary Bill Shorten 33 directionally drilled 33 Akita Drilling Ltd. 33 Driefontein mine 33 PT Lapindo Brantas 33 deepwater drilling rig 33 fraccing 33 Stolt Offshore 33 PetroQuest 33 Bernard Duroc Danner 33 Zapadnaya 33 NYSE Amex QBC Cubic 33 Beached whales dolphins 33 Company MEE MEE 33 Jorge Galleguillos 33 Pateke 3H 33 Buffalo Wallow Granite Wash 33 Mexco Energy Corporation 33 VIC/P# 33 CHARLESTON W.Va. Coal 33 gas driller 33 Leor Energy 33 Canext 33 onshore drilling rigs 33 Pantheon Resources 33 driller Grey 33 governor Aman Tuleyev 33 Anadarko Woodford Shale 33 ATWOOD SOUTHERN CROSS 33 JMG Exploration 33 Lekorotsoana 33 Amy Louviere 33 ReedHycalog 33 CEO Jim Buckee 33 Logandale Nevada 33 GlobalSantaFe GSF 33 Urzua capsule surfaced 33 shaft 33 Pumpco 33 Seadrill Ltd. 33 Wolfcamp Shale 33 Niko Resources NKO.TO 33 Texon Petroleum 33 underbalanced 33 Carbonera basal sands 33 largest offshore driller 33 Carlos Bugueno 33 Zasyadko coal 33 Talisman Energy 33 Niobrara shale 33 Glauconitic 33 Fountain Quail 33 Jaime Manalich 33 Anschutz Exploration 33 EnCore Oil 33 Wang Xingang 33 Hydril 33 Rowan Cos. 33 Niobrara Shale 33 Schlumberger Ltd. nyse SLB 33 Deepwater Nautilus 33 Ellora Energy 33 Wangjialing 33 Dario Segovia 33 President Sebastian Piñera 33 Diamond Offshore 33 steep sandstone cliffs 33 Stillhouse Mining 33 ultradeep waters 33 flooded Quecreek Mine 33 AMFIRE 33 TriAxon Resources Ltd. 33 Nexen Inc NXY.TO 33 Brandrill 33 Pingyu Coal & 33 Nando Parrado 33 Nasdaq BEXP 33 TGRO 33 Ariel Ticona 33 Precision Drilling 33 Object Reservoir 33 Ensco Plc 33 Seacor Holdings 33 microseismic 32 Piceance basin 32 Consol Energy Inc CNX.N 32 Atoka formations 32 petroleum geologist 32 Keppel AmFELS 32 Quecreek miners 32 LLOG 32 Rockhopper Exploration LON RKH 32 TauTona mine 32 Seahawk Drilling 32 drillers 32 Veritas DGC Inc. 32 Discoverer Deep Seas 32 Huayuan Mining Co. 32 Chile choreographs 32 miner Dario Segovia 32 unconventional shale 32 Shanxi Coking Coal 32 captivated Chileans 32 Ascent Resources 32 Batian mine 32 StatoilHydro ASA STO 32 downhole drilling 32 Chilean miner 32 Russell Gubele coordinating 32 ASX RRS 32 Texola 32 caver 32 Westenskow 32 Transocean Ltd. RIG 32 Western Geco 32 Carlos Mamani 32 Loretta Ables 32 Credo Petroleum 32 Energy Enhancer 32 spokesman Dave Eskelsen 32 Shanxi Hebei Hunan 32 Gas LON EOG 32 Sbaffoni 32 Enterra Energy Trust 32 Transocean Ltd RIGN.VX 32 Vetco 32 Helix Energy 32 PetroNeft Resources 32 trapped Chilean miners 32 EnerCrest 32 Notikewin 32 Kloof mine 32 survivor Daniel Rockhouse 32 Petro Canada PCA.TO 32 LeTourneau Technologies 32 drilling fluids 32 Tullow Oil Plc 32 unconventional reservoirs 32 Dejour Enterprises 32 deepwater driller 32 Kaskida 32 Halemba coal mine 32 Sago miner 32 MegaWest Energy 32 Topaz Resources 32 Ulyanovskaya 32 oilrig 32 Superior Offshore 32 Zhijian mine 32 Baxter Shale 32 driller Hercules Offshore 32 Gulftex Operating Inc. 32 Nostra Terra 32 Tengasco 32 Transocean Inc RIG.N 32 Schlumberger Ltd SLB.N 32 Renan Avalos 32 Chief Executive Peter Whittall 32 International Ltd WFT.N 32 vessel Helix Q# 32 miner Osman Araya 32 Bayou Postillion 32 Zijin Mining SHA # 32 PetroBakken Energy 32 NASDAQ LAYN 32 Deon Dreyer 32 petrophysical evaluation 32 Drunkard Wash 32 Transocean LTD 32 Nostra Terra Oil 32 sixth borehole drilled 32 Chesapeake Appalachia 32 Hercules Offshore Inc. 32 Terra Nova oilfield 32 Petrogen 32 Chevron Corp CVX.N 32 Dear Lila 32 Novoshakhtinsk 32 Seahawk Drilling Inc. 32 supervisor Luis Urzua 32 drilling contractor Todco 32 heard Ichsan Azmil 32 Schlumberger Ltd. SLB.N 32 Raton Basin 32 Development Driller 32 Richardo Morales 32 petrophysical analysis 32 ICG Kitts 32 SAN JUAN DE SABINAS 32 Trans Orient 32 potash mines 32 Piñera 32 Transocean Marianas 32 Hercules Offshore HERO 32 Pecan Gap 32 Whittall 31 Thaeler 31 Denver Julesburg Basin 31 Rocksource 31 Cristina Nunez 31 Anguished relatives voiced 31 Zhao Tiechui deputy 31 Dril Quip Inc. 31 Andres Sougarret 31 miners trapped 31 producer PetroChina #.HK 31 redrill 31 Det Norske Oljeselskap ASA 31 semisubmersible 31 girlfriend Susana Valenzuela 31 Doug Conaway 31 Wavefield Inseis ASA 31 JKX 31 Shift foreman 31 Dave Chirdon 31 Nabors Industries NBR 31 onshore seismic 31 Anadarko Petroleum APC 31 Granite Wash wells 31 Duvernay Oil 31 KBR Inc KBR.N 31 deepwater exploratory wells 31 Petrofac PFC.L 31 Alfonso Avalos 31 Cardium horizontal wells 31 Sgt Lyddiard 31 MI SWACO 31 near Barroteran 31 Encana Corp 31 Nexen Inc 31 TXCO 31 Norcon 31 Todco THE 31 Cuetzalan 31 roof bolter 31 tunnels Baywong 31 Valiant Petroleum 31 Mangahewa 31 Bankers Petroleum 31 Blaine Mayhugh 31 Los Menucos 31 GSF Arctic IV 31 Terax 31 Sardinata northeastern Colombia 31 NYSE NBL 31 Pogo Producing 31 Villaroel 31 petrophysical 31 OYO Geospace 31 packages dubbed palomas 31 frack 31 Urzua 31 CAMPBELLTON Texas 31 coal mine 31 liftboat 31 SEECO 31 Juan Illanes 31 Sunjiawan 31 semisubmersible drilling 31 Encana Corp. 31 Songa Saturn drillship 31 undersea gusher 31 privately owned Xiaonangou 31 directional drillers 31 Bolivian miner 31 SAN JOSE MINE Chile 31 Dawson Geophysical 31 Handlova mine 31 salt dome caverns 31 Pamodzi Gold 31 oz y 31 Limited ASX SSN 31 Ensco PLC 31 Lexaria Corp. 31 Zapadnaya mine 31 rat infested subway 31 ultradeep 31 Genwal Resources 31 mine shaft 31 hydraulically fracture 31 McMoRan Exploration 31 Fayetteville shales 31 Deepwater Expedition 31 COPIAPO CHILE 31 Goldborne 31 coalbed 31 Weiyuan county 31 sidewall cores 31 semisubmersible drilling rigs 31 Cutoff valves 31 Josh Ufer 31 Wilberg Mine 31 MULLAN Idaho 31 workover 31 Mario Sepulveda Espina 31 Newfield Exploration Co. 31 Genwal mine 31 Luis Alberto Urzua 31 Comstock Resources 31 Pioneer Drilling 31 Suncor Energy Inc SU.TO 31 Atwood Oceanics Pacific 31 downhole 31 AMEX FPP 31 Sangaw North 31 GSF Arctic II 31 Deepwater rig 31 Schlumberger Ltd. SLB.N Quote 31 Araucania region 31 Urosek 30 Ruda Slaska 30 drillstem test 30 Tunlan Coal Mine 30 Occidental Petroleum NYSE OXY 30 Wenzel Downhole Tools 30 beaming Pinera told 30 NYSE Amex LEI 30 Mineworkers Union 30 drilling rigs 30 Cretaceous reservoir 30 Mr Easther 30 1 Lutters Well 30 Denbury Resources DNR 30 AKD# appraisal 30 Copiapo Chile 30 UnionTown 30 explorer Afren 30 fracing 30 Ship Shoal Block 30 Raspadskaya coal 30 coal slurry ponds 30 Wonstolen 30 Bowleven 30 miners entombed 30 Gene Isenberg 30 Energy DVN.N 30 Arabasz 30 Aracoma Alma 30 Gengaro 30 horizontal Niobrara 30 Italia waving flags 30 Long Limin 30 airtight refuge 30 drillpipe 30 Liuguantun Colliery 30 Ensign Rig 30 Wolffork 30 NYSE ESV 30 Texon 30 Sebastián Piñera 30 Wulong county 30 Diamond Offshore Drilling 30 explorer Cairn Energy 30 Oilexco Inc 30 EnerJex 30 underwater robots 30 EOG Resources Inc. 30 Lethal gases 30 Esteban Rojas 30 wellbores 30 Osman Araya 30 Anzac Day rockfall 30 Transocean Ltd 30 NUM spokesperson Lesiba 30 Lower Tertiary trend 30 Global SantaFe 30 earthshaking collapse 30 Marcellus shale wells 30 BP BP.L BP.N 30 oilfield 30 José Ojeda 30 Wangjialing coal mine 30 Lower Oligocene 30 Hunton Limestone 30 uncompleted wells 30 Baytex Energy 30 Chief Engineer Husnu 30 airtight chambers 30 EnerJex Resources Inc. 30 Sanyuandong Coal Mine 30 Utica Shale formation 30 Liu Dezheng 30 Energy Corp DVN.N 30 Frei Montalva 30 Ozona Northeast 30 Seadrill Ltd 30 Nexen 30 TransCanada Corp TRP.TO 30 Chilean Miners 30 Omar Reygadas 30 hydrocarbon bearing 30 Newpark Resources Inc. 30 Neville Rockhouse 30 Hegang Heilongjiang province 30 Petsec Energy Ltd 30 Preeceville Saskatchewan 30 Crimson Exploration 30 producer OAO Lukoil 30 miner Claudio Yanez 30 Transocean Diamond Offshore 30 Schlumberger 29 producer XTO Energy 29 BP.N 29 offshore drilling contractor 29 TGS NOPEC 29 Gov. Ximena Matas 29 AMOCO 29 Cadogan Petroleum 29 Geoff Valli 29 miner Mario Sepulveda 29 Claudio Acuna