1223121 Alberta Ltd.34

A. Robert Abboud and Co.41

Access Exploration Corp.40

Acteon49

Acumen Capital Finance Partners Ltd.51

Admiral Bay Resources Inc.40, 52

Advantage Capital Partners46

Advantage Energy Income Fund33

Aethon I LP40

A-Fidan LLC37

AIM Management49

Akita Drilling Ltd.49, 53

Albrecht & Associates11, 19

Alliance Imaging49

Allis-Chalmers Energy Inc.48

AltaCanada Energy Corp.14, 40, 52

Altra Industrial Motion46

Amerada Hess Corp.40, 43

American Energy Advisors19

American Energy Group Inc.51

American Oil and Gas Inc.32

Amoco40, 42

Anadarko Petroleum Corp.23, 40, 54

Analytical Surveys Inc.22, 39

Anderson O&G Inc.19

Andrews Kurth LLP 29

Apache Corp.38

Arakis40

Arapahoe Resources LLC22, 39

Arawak Energy Corp.37

Arise Technologies Corp.51

Armitage International LLC 41

Arsenal Energy42

Aspen Group Resources Corp.33, 53

Associated Petroleum Investors Ltd.48

Atasca Resources41

Atlas America Inc.40

Atlas Energy LLC40

ATP Oil & Gas Corp.1, 22

Aurora Oil & Gas Corp.43

Austral Pacific Energy (NZ) Ltd.36

Australian-Canadian Oil Royalties Ltd.36

Avalon Energy Corp.51

Avalon Oil & Gas Inc.22

Avery Resources Inc.36

Axiom Venture Partners49

Bainbridge Capital19

Baker Hughes Inc.46, 47, 48, 49,

Banc of America Securities LLC 50, 51, 52

Bank of America NA 24, 51

Bank of Scotland Integrated Finance46

Bankers Petroleum Ltd.,22

Barbara and Mortimer 35

Baron Partners 36

Basic Energy Services Inc.46

Baxter Bold & Co.19

Bayou City Exploration Inc.54

Bayshore Exploration LLC28

BD Holdings9

Bear, Stearns & Co. Inc.50, 53

Bear's Safety & Rescue Services Ltd.47

Benton Oil and Gas Co.43

Berry Petroleum Co.43, 52

BG Alaska E&P Inc.22

BG Group Plc22, 41

BHP Billiton Ltd.40, 56

Bill Barrett Corp.23

Birchill Energy Ltd.15

BJ Services Co.49

BK Webb 9

Black Gold Trading9, 19

Black Hills Corp.41

Black Rock Oil & Gas39

BlackRock Ventures Inc.34

Blackstone Group19

Blue Dolphin Energy Co.51

BMB Munai Inc.40

BMO Nesbitt Burns Inc.34, 50

Bobcat Pipe & Supply Inc.46

Bomaco Production32

Bonanza Creek Energy Co. LLC23, 52

Boomers' Cultural Developments Inc.23

Bow Valley Energy Ltd.40

Boylan Energy Corp.41

BP17, 48 49, 56, 60

BPI Energy23

Brayton Operating Co.13

Breaker Energy Ltd.56

BreitBurn Energy Partners LP 23, 51

Brek Energy Corp.23

Bridas Central Co. Ltd.48

Bridas Corp.48

Bridas International Holdings Ltd.48

Brinx Resources Ltd.51

British Gas56

Brookfield Bridge Lending Fund Inc. 52

Brown46

Bryant Park Capital 26

Buckley & Boots19

Burks Oil & Gas Properties12, 19

Burlington Resources Inc.41

Cabot Oil & Gas Corp. 41

Cadence Resources Corp.23, 43

Calfrac Well Services Ltd.49

California Oil & Gas Corp.40

Calpine Corp.4

Calpine Natural Gas LP4

Cameron52

Canaccord Adams Inc. 39, 50, 51, 52

Canaccord Enermarket15, 19

Canada Southern Petroleum Ltd.34

Canadian Natural Resources Ltd.35

Canadian Oil Sands Trust43

Canadian Superior Energy Inc.56

Cano Petroleum Inc.23, 40

CanWest Petroleum Corp.40, 43

Canyon Creek Oil & Gas Inc.22, 40

Capital Energy Advisors Inc.19

Carbo Ceramics Inc.49

Cardinal Resources Plc51

Carlyle/Riverstone Global Energy and Power III LP39

Caspian International Oil Corp.37

Castle Energy Corp.24

Castleguard Energy Inc.9

CB Securities Inc.16, 19

CCS Income Trust47, 50

CE Franklin Ltd.49

CEC Energy Consultants19

Centennial Energy Partners LLC49

Central Geophysical Expedition LLC37

Centre Partners46

Centurion Gold Holdings Inc.40, 55

CH4 Corp.23

Challenger Development Corp.15

Challenger Energy Corp.56

Chance Oil Co. Inc.32

Charles Heyden15

Cheal Petroleum Ltd.36

Cheniere Energy Inc.40

Chesapeake Energy Corp.23, 32, 41

Chesapeake Exploration LP23

Chevron Corp.9, 31, 53, 40

Chief Holdings LLC25

China Ivanhoe Energy Ltd.35

China Mineral Acquisition Corp.35

China National Petroleum Corp.35

Christian Coal Holdings LLC23

CIBC World Markets Inc. 19, 34, 35

Cindy and Bob Gayle9

Cirrus Energy Corp.35

Cirrus Energy Nederland BV35

Citigroup Global Markets Inc.50, 51

Classic Petroleum Resources Inc.39

CM Ideal Energy Inc. 47, 49

CNOOC Ltd.50

Cody Energy9

Coldren Oil & Gas Co.23

Coldren Resources LP 23, 47, 52

Collarini Energy Staffing49

Colorado Wyoming Reserve Co.24

Compass Advisers19

Complete Production Services Inc.50

Concord Well Servicing47

ConocoPhillips36, 41

Conquest Cherokee LLC 53

Contango Oil & Gas Co.24, 52

Costa Energy Inc.41

Credit Suisse 24, 39, 50, 52, 53

Creston Resources Ltd.24

Crosstex Energy Services25

Crow Creek Holding Corp.28

CRSI Group Inc.37

CSC Group43

Cymri LLC 32, 43

D.F. King & Co. Inc. 53

Dahlman Rose & Co.51

Daleco Resources Corp.24

Deep Well Oil & Gas Inc. 50

Dejour Enterprises Ltd.24

Delta Petroleum Corp.24, 56

Denbury Resources Inc.24, 40, 50

Deutsche Bank Securities Inc.52, 53

Devon Energy Corp.25

Digital Ecosystems Corp.25, 41

Digital Gas Inc.41

DLS Drilling Logistics and Services Corp.48

Doering, Burns & Associates Inc. 39

Dominick & Dominick Securities Inc.51

Dominion Exploration & Production Inc.12, 54

Douglas C. Koch 9

D-R Interholding LLC50

Dresser Inc.49

Dresser-Rand Group Inc. 50

Duke Energy Corp.40, 49

Dundee Securities Corp.51

Dune Energy Inc.25

Dynegy Inc.42

Eastern American Energy Corp. 26

Eastern American Natural Gas Trust 25, 50

Econ Management AS41

Ecopetrol56

Eden Energy Corp.41

El Paso Corp.41, 42, 50, 56

Eldorado Exploration Inc.25

Emerging Markets Finance International LLC42

Empire Financial Group Inc. 51

EnCap Investments LP38

Endeavour International Corp.35

Enerchem International Inc.47

Energen Corp.53

Energie Beheer Nederland BV 35

Energy Auction Place19

Energy Capital Solutions 50

Energy Exchange19

Energy Exploration Technologies Inc.51

Energy Listings LLC 9, 12, 19

Energy Partners Ltd.1, 3, 41

Energy Spectrum Advisors19

EnergyNet.com 9, 13, 19

Eni U.K. Ltd.35

Ensley Properties Inc.19

Ensource Energy Income Fund LP25, 50

Entergy Corp.42

Enterprise Oil Plc49

Enterra Energy Trust26

EOG Resources Inc. 56

Equistar Capital LLC25, 41

Equitable Resources1

ERG9

Ernst & Young Corp. Finance19

Ervin Anderson & Co. JV19

Escopta Oil55

Exall Resources Ltd.41

Exco Resources Inc.26

Explore Enterprises of Louisiana LLC31, 47

Explore Offshore LLC31, 47

Exxel Energy Corp.50, 51

ExxonMobil 9, 15, 31, 32, 36, 39, 40, 53, 60

Faeroes Petroleum Plc35

Fairfield Acer Ltd.35

Falcon Oil & Gas Ltd.41

Fellows Energy Ltd.41

Fidelity Exploration & Production Co.26

Finavera Ltd.17

First Albany Capital51

First Reserve Corp. 24, 47, 50

FirstEnergy Capital Corp. 50, 51, 60

Focus Energy Trust33

Foothills Resources Inc.41, 50

Forcenergy Inc.43

Ford Motor Co.40

Forest Oil Corp.43

Fortress Credit Corp.26

Foster Wheeler Ltd.49, 53

Foundation Energy19

Franklin Mining Inc.39

Friedman, Billings & Ramsey4, 19

Galaxy Energy Corp.52

Gasco Energy 1

Gastar Exploration Ltd. 43

GasTech Inc.9

Gastem53

Gaz de France56

GE Energy Financial Services 52

Gem Inc.40

General Motors46, 49

Genesis Offshore LLC48

Geocan Energy Inc.34, 52

Georgeson Shareholder Communications Inc.26, 50

Geostar Corp.43

GHK11

Ginarra Partners LLC42

Global Oil Tools43

Globe Well Service Inc.46

GMP Securities LP 35, 50, 51

Goldman, Sachs & Co. 47, 50, 52

Goodrich Petroleum Corp.41

Graham Resources and Management 46

Grainer Oil 12

Granmar Investments Ltd.40

Graves & Co.19

Gray Energy Services LLC46

Gray Wireline Service Inc.46

Great Plains Energy Inc.55

Greater Sooner Holding Inc.26, 41

Greenhill Capital Partners19

Greenstar Energy Production LLC11

Grifco International Inc.43

Griffis & Associates LLC 11, 19, 29

Grove Energy Ltd.52

Growth Capital Partners 19, 46

Gryphon Exploration Co.39

GSL Energy Corp.25, 41

GT International Inc.19

Guard Resources 15

Gulf Biomedical Corp.26

Gulf Coast Oil Corp.26

Gulf Keystone Petroleum Ltd.17

GulfMark Offshore Inc.49

Gulfport Energy Corp.51

Hall-Houston Exploration Partners LLC Fund II50

Halliburton46, 49

Hannon-Westwood19, 39

Harris Nesbitt29

Harrison Lovegrove LP19

Hercules Offshore Inc.27, 50

Hess Corp.26, 43, 60

Highview Resources Ltd.40

Hinkle Elkouri Law Firm LLC29

Homeland Gas & Oil 24

Houston American Energy41

Houston Energy Advisors LLC38, 39

Howard Heyden 15

Howard Weil Inc. 1, 50

HSE Integrated Ltd.47, 49

Hunt Petroleum Corp.54

Husky Oil Ltd.43

Hydro-Québec Pétrole et Gaz42

Ideal Energy Directional Drilling Services Inc.47, 49

IDM Equipment Inc.48

IEC (Montgomery) LLC23

Imperial Oil Ltd.15, 27, 33, 41, 53

IndigoPool 9, 15, 17, 19

Indocan Resources Inc.27

Inexco Oil & Gas49

Inland Resources Inc.43

Inmet Mining Corp.41

Innova Exploration Ltd.16

Innovene49

Input/Output Inc.49

Integrated Technology Group Inc.27

InterMoor49

InterOil Corp.41

Intrepid Oil & Gas 11

Ipsco Inc.53

Iron Horse Coiled Tubing Inc.52
Prospect Energy Corp.52

Iteration Energy Ltd.34

Ithaca Energy (UK) Ltd. 35

Ivanhoe Energy Inc.35, 41

J. Cleo Thompson11

J. Goldman & Co.39

J. Ray McDermott SA53

J.P. Morgan 19, 24, 29, 30, 39, 50, 52

James Cleo Thompson Jr.11

Japan Petroleum Exploration Co.36

JDM Trucking Ltd.47

JDMD Investments LLC 31

JED Oil Inc.31

Jefferies & Co. Inc.19, 39, 50

Jennings Capital Inc.34

JMT Resources23

JNR Resources Inc.35

John Thompson11

Johnson Rice & Co. LLC 50, 51

Journey Oil & Gas LLC 11

Jumbo Petroleum Corp.43

J-W Operating Co.11

Kachina Gold Corp.27

Kayne Anderson Energy Total Return Fund Inc.53

KBR46

KCS Energy Inc.28

Kenne Exploration Inc.26

Kerr-McGee Corp.32, 40, 43

Ketch Resources Trust 33

KeyBanc Capital Markets40

King Energy Inc. 35

King, LeBlanc & Bland PLLC 43

Knight Energy Corp.27, 28

Knowledge Systems49

Kobayashi Partners Ltd.15, 19

Kodiak Energy Inc.27, 41, 43

Koko Petroleum Inc.23

Kootenay Energy Inc.43

Kor-Tazh LLP37

Kozel Energy49

Kroes Energy Inc.51

L&R Energy Corp.32

Lake Ronel Oil Co.11

Laminar Direct Capital VI LLC 52

Lane Capital Markets LLC 51

Lantana Oil & Gas Partners9, 11, 19

Laredo NB Energy Advisors19

Latigo Petroleum Inc.30

Laurus Master Fund Ltd. 26, 28, 52

Lehman Brothers Inc. 24, 26, 29, 50, 53

Leor Exploration & Production LLC50

Lexington Resources Inc.51

Lime Rock Partners27, 48, 51

Linda Odeal 11

LKD Corp. 11

LLC NK Recher-Komi37

Lone Star Technologies Inc.53

Loudon Exploration11

Lukoil37

MAB Resources LLC25

Mackey Tanner Petroleum Inc.54

Macquarie Bank Ltd.52

Madison Energy Advisors39

Maersk Olie og Gas AS35

Magellan Petroleum Corp.36

Magnum Producing LP12

Mantek Resources (Proprietary) Ltd.41

Manti Resources Inc.26

Marathon Oil Corp. 27, 37, 41, 43, 56

Mariner Energy Inc.52

Master Flo Valves Inc. 40

Matador Resources Co. 40

Maurel & Prom 42

McClaugherty & Silver PC42

McConnell Engineering 41

MDU Resources Group Inc.26, 43

Meagher Oil & Gas Properties Inc.9, 11, 12, 14, 19

Medco Energi International Tbk36

Menasha Forest Products Corp.43

Merrill Lynch3

Merriman Curhan Ford & Co. 50, 52

Michael Baker Corp.49

Michelle Fulton 15

Mid-America Resources Corp.12

Millard Trucking Ltd.47

Millennium Seismic Ltd.43

Mirabaud Securities Ltd. 52

Mitchell Energy Advisors19

MitEnergy Upstream LLC30

Mitsubishi Gas Chemical Corp.36

Mitsui & Co. Ltd.29

Mobil39

Mobilestream Inc.43

Montierra Minerals & Production LP39

Morgan Creek Energy Corp.27, 43

Morgan Stanley 2, 25, 29, 50, 52

Morrow & Co. Inc. 53

Moyes & Co. Inc.19

Munai Impex40

Nabors Industries Inc.51

Naftex Energy Corp.43

Natco Group27

Natexis Bleichroeder Inc.50

Nathan Oil Partners LP23

National des Hydrocarbures et des Mines35

National Petroleum Co.40

Natural Gas Partners39

Natural Gas Systems Inc.24

Navajo Nation Oil and Gas Co.31

NDT Energy Ltd.51

Neftegazenergo Ltd.38

Netherland, Sewell & Associates Inc.39

New Century Energy Corp.26, 27, 56

Newmont Mining Corp. of Canada Ltd.16

Newpark Resources Inc.49

Nexen Inc.60

NGP Capital Resources Co.31, 39, 52

Niko Resources Ltd.41

Noble Corp.40, 49, 52

Noble Energy Inc.24, 47, 52, 53

Nord Oil International Inc.38, 41

Nordic Oil and Gas Ltd.51

Norse Energy Corp.43

Norstar Operating LLC54

North Coast Energy Inc.26

North-West Oil Group38, 41

Nortia Capital Partners Inc.28

Norwood Resources Ltd.41

Nosara Holdings Ltd.34

Nova Technology Corp.46

NS Group Inc.49

O'Meara Inc. 12

Object Reservoir Inc.49

Occidental Petroleum Corp.43, 60

Oceaneering International Inc.49

Octagon Capital Corp.51

Ødegaard A/S48

Oil & Gas Technology Fund 12

Oil India Ltd.38

Oil States International Inc.49

Oilexchange.com19

OilExco North Sea Ltd.35

Oilfield Pro-Log Services Inc.46

OilProperties.com19

Oilsands Quest Inc. 40

OMI Corp.53

Ominex Resources17

Omni Capital LP41

OMV39

ORX Resources Inc.43

Osage Energy Co. LLC27

Ospraie Management 26

PaineWebber Inc.41

Palm Oil & Gas 55

PanAmerican Energy48

Paradigm Geo49

Patch Energy Inc.41, 42

Patterson-UTI Energy Inc.49

Paxton Energy Inc.28, 51

Peak Energy Ventures42

Pearl Energy Ltd.41

Pebercan Inc.42

Pedernales Energy LLC 12

Pegasus Oil & Gas Inc.51

Pemberton Energy Ltd.34, 51

Penn Virginia Corp.28

Pennwell Corp.39

PEP 38757 Ltd.36

PEP 38758 Ltd. 36

Perkins, Macintosh and Perkins Ltd.48, 51

Peters & Co. Ltd.50

Petrie Parkman & Co.19, 25, 29, 31

Petro Capital Securities LLC9

Petro Resources Corp.42, 50

PetroAdvisor SA19

Petro-Canada34

Petrofac Resources Ltd.35

Petroflow Energy Ltd.26

PetroGrowth Advisors19

Petrohawk Energy Corp.28

Petroleum & Resources Corp.39

Petroleum Engineers Inc.32

Pétrolia42

Petromet Resources42

PetroQuest Energy Inc.12, 42

PetroSales 11, 13, 15, 19

Petrospec Technologies49

PetroSun Drilling Inc.46

PGPU/Maverick Energy29

PHI Inc.50

Phoenix Associates Land Syndicate29, 42, 47, 49, 53

Phoenix Exploration Co.39

Pickering Energy Partners Inc. 50

Pilgrim Petroleum Corp.29

Pioneer Natural Resources Co. 12, 38, 42, 52, 53

Pitco Production 12

Plains Exploration & Production Co.2, 29

PLS Inc. 11, 12, 13, 19

PMC Reserve Acquisition Co.39

PO&G Resources-Texas LLC42

Pocaterra Energy Inc.16

Pogo Producing Co.29, 30

PRB Gas Transportation Inc.30

Premier Oil Plc36

Premium Petroleum Inc.42

Prima Exploration Inc.12

Pritchard Capital Partners LLC 50, 51

Producers Oilfield Services Inc.48

Production Enhancement Group Inc.52

Production Services Network46

ProEx Energy Ltd.50

Profico Energy Management Ltd.33

Prospect Energy Corp. 53

Provident Energy Trust23, 51

Pulse Data Inc.48

Pure Resources Inc.42

Quest Capital Corp. 41

Questar Corp.42

Questar Market Resources Inc.52

RAB Capital Plc's Energy Funds 52

Radial Energy Inc.38

Ram Energy Inc.32

Rancher Energy Corp. 42

Randall & Dewey Inc. 11, 12, 13, 19, 24, 29, 30

Range Resources Corp.22, 30, 38, 39, 52

Raymond James & Associates 31, 50

Raytheon Co.'s Network Centric Systems49

RBC Capital Markets Corp.23, 35, 40, 48, 51

Ready Drilling54

Red Sky Resources Inc.34, 51

Reef Energy Resources LLC19

Reef Holdings32

Reef Oil and Gas Partners 12

Reibanc USA Inc.27

Remora Oil Co.40

Rentech Inc.50, 52

Resaca Exploitation LP31, 52

Research Capital Corp.52

Resolute Holdings LLC 31

Result Energy Inc.52

Retamco24

RF Energy Investments Ltd.37

Riata Energy Inc.32, 42, 51

Richardson Barr & Co.19

Ridgeway Petroleum Corp.52

Rio Alto Resources International 42

Rise Resources Corp.16

Riverbank Investment Corp.31

Riviera Energy Corp.12, 19

Rivington Capital Advisors LLC23, 52

Robert Barnard13

Rolling Thunder Exploration Ltd.51

Rosetta Resources Inc.4, 42

Roxar27

Royal Dutch Shell Plc53

Royalite Petroleum Corp.33

Royster-Clark Nitrogen Inc.50, 52

Rycroft Disposal Well Inc.48

Saga Petroleum39

Sam's Oil Country Inspection Services Inc.47, 49

Sand Oil Inc.42

Sanders Morris Harris39

Santa Fe Exploration 39

Santos Ltd.36

Sayer Energy Advisors 14, 16, 17, 19

Schlumberger Ltd.47, 48, 49

Scientific Industrial Firm Dank LLC37

Scotia Waterous Inc. 16, 17, 19, 23

SDG Resources LP31

Seabulk International Inc.49

Second Southern Corp.42

Seeco Inc.55

Seely Oil Co.13

Sequent Energy Management49

SESI LLC53

Sharpe Resources Corp. 31

Shell34, 35, 40, 42

Shellbridge Oil & Gas Inc.35

Shelly Collins13

Sheridan Energy5

Shumate Industries Inc. 49

Signal Hill Oil 12

Silver Star Energy Inc.42

Simmons & Co. International 1, 39, 48, 50, 51, 52

Simplex Energy Solutions11, 19

Skipping Stone19

Softrock Minerals Ltd.51

Sonangol35

Sooner Inc.49

South African Reserve Bank41

South Pacific Lease Operations Ltd.36

Southeast Transmission & Compression Co. Inc.13

Southpoint Resources Ltd.42

Southwestern Energy Co.27, 55

Seeco Inc.55
Sprott Securities Inc.50

St. Mary Land & Exploration Co.42

Stable Resources25

Standard & Poor's 2, 31

Stanway Capital40

Star Energy Corp.42

Starlight Investments LLC 51

Statoil 56

Stealth Ventures Ltd.42

Stellar Energy Advisors Ltd.19, 35

Sterling Bank32

Sterne Agee & Leach29

Stone Energy Corp.1, 2, 29, 42

Stonehenge Capital Co. LLC46, 48

Storm Cat Energy Corp.31, 42

Strategic Oil & Gas Ltd.31

Stratford American Corp.31

Stratic Energy Corp.35

Stream-Flo Industries Ltd.40

Stroud Energy Inc.30, 38

Structured Capital Corp.32

Suisse Securities (USA) LLC 50

Sumeh 13

Sun Healthcare Group Inc.49

Sunray Oil 27

Sunshine Gas Ltd.36

Sunwing Energy Ltd.35

Superior Energy Services Inc.31, 47, 52, 53

Superior Oil & Gas Co.31, 35

Susquehanna Financial Group39

Swift Energy Co.42, 49

Synfuel Corp. 41

Tag Oil Ltd. 36

Tango Energy Inc.42

TCP Properties LLC29

TDC Energy LLC 12

Tekoil & Gas Corp.42

Tengasco Inc.42

Terax Energy Inc.42

Terra Energy Corp.17

Terrabyte LLC42

Tesco Corp.49

Teton Energy Corp.32, 43

Tetra Technologies Inc.52

Texas American Resources13

Texas Energy Inc.32

Texaurus Energy Inc.32, 43

The Bank of New York 53

The Cymri Corp.32, 43

The Dillard Anderson Group19

The Oil & Gas Asset Clearinghouse11, 12, 14, 19, 32

The Oil Auction.com19

The Royal Bank of Scotland Plc52

The Scotia Group Inc.19

Thelen, Reid & Priest LLP43

Third Point LLC 26

Thompson & Knight LLP 29

Tiger Energy Inc. 46

TLC Engineering Inc.41

TM Capital 36

TMEI 51, 52

Torch Energy Advisors Inc.31

Torrent Energy Corp.43

Total E&P32

Tradestar Services Inc.32, 43, 51

Trango Technologies Inc.48

TransAtlantic Petroleum Corp.35

Transmeridian Exploration Inc.51, 52

Transocean Inc.52, 53

Tremisis Energy Acquisition Corp.32

Trico Marine Services Inc.49

Trinidad Drilling41

Tristone Capital Inc. 11, 12, 13, 14, 15, 16, 17, 19, 26, 50, 60

Triton American Energy26

Triumph Energy Inc.32

True Energy Inc.35, 49

Tuscan Energy (Cragganmore) Ltd.35

Twiflex Ltd.46

U.S. Energy Systems Inc.33

U.S. Exploration27

UBS Investment Bank39

UBS Securities LLC 50

Ultra Petroleum Corp.53

Union Bank of California23

Unit Corp.33, 54

Universal Property Development and Acquisition Corp.22, 32, 40, 49

Unocal Corp. 42, 53

UPDA Operators Inc.49

Upstream Advisors LP19

Vaalco Energy Inc.35

Valkyries Petroleum Corp.37

Vallenar Energy Corp.23

Van Operating Ltd.13

Vanco Energy Co.35

Vanquish Oil & Gas35

Velvet Exploration42

Viking International Petroleum33

Vintage Petroleum LLC22

Vision Energy Advisors19

Vtex Energy Inc.33

Vulcan Minerals Inc.17

Wachovia19, 26

Warburg Pincus LLC 30, 40

Warrior Energy Services Corp.50

WaveForm Energy Ltd.35, 43, 49, 52

Weisser, Johnson & Co.19

WellDog Inc.49

Wells Fargo Energy Advisors19, 32

Wentworth Energy Inc.43

West Mountain Operating Co. Inc.54

Westchester Resources Inc.33

Western Gas Resources Inc.14

Western Petrochemical Corp.34

WesternGeco47, 48

WestLB AG33

Westwind Partners (UK) Ltd. 52

Whittier Energy Corp.12, 27, 33

Wichita Clutch46

Wilbanks Reserve 14

Williams Production 12

Williams51

Wintershall Noordzee BV35

Woodside Energy Ltd.36, 40, 41

Worldbid Corp.33

Wyoming Mineral Exploration LLC 14

Yellowstone Energy Ventures49

Z2 LLC29

Zachery Exploration12

ZAO PechoraNefteGas37

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