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Rank Company BOE Total wells Largest field

33 Covey Park Energy LLC 5,928,141 134 Hilltop Resort

34 Yates Petroleum Corp. 5,824,308 945 Powder River Basin Coal Bed

35 Castex Energy Inc. 4,735,055 37 Atchafalaya Bay

36 Ballard Exploration Co. Inc. 4,613,069 63 Yellow Rose

37 Silver Hill Energy Partners 4,507,087 53 Phantom

38 Brigham Resources LLC 4,237,907 54 Hoefs T-K

39 Pantera Energy Co. 3,976,909 1,212 Panhandle West

40 Summit Petroleum LLC 3,953,371 551 Spraberry

41 Great Western Oil & Gas Co. 3,952,360 485 Wattenberg

42 White Oak Energy LP 3,900,862 902 Magnet Withers

43 Cantera Energy 3,703,480 644 Bob West

44 Pruet Production Co. 3,492,923 203 Brooklyn

45 Stephens Production Co. 3,413,411 897 Gragg

46 Ankor Energy LLC 3,376,888 112 Ship Shoal Block 0230

47 Square Mile Energy 3,368,146 48 Glasscock

48 BASA Resources Inc. 3,360,615 4,013 East Texas

49 Foundation Energy Management LLC 3,243,265 2,231 Republican

50 Tellus Operating Group LLC 3,217,056 340 Baxterville

51 Alta Mesa Holdings LP 3,137,684 148 Weeks Island

52 Tidelands Oil Production Co. 3,118,453 485 Wilmington

53 Fuse Energy LLC 2,987,704 175 Newark East

54 DCOR LLC 2,980,736 250 Dos Cuadras

55 Renaissance Offshore LLC 2,971,596 94 Ship Shoal Block 0176

56 E&B Natural Resources Management Corp. 2,965,889 1,164 Poso Creek

57 Burnett Oil Co. Inc. 2,923,555 306 Loco Hills

58 Zarvona Energy LLC 2,891,101 272 Brookeland

59 Sanguine Gas Exploration LLC 2,871,913 246 Mills Ranch

60 Border To Border Exploration LLC 2,870,423 88 Beech Grove

61 Texland Petroleum, L.P. 2,783,730 741 Fullerton

62 LOGOS Resources LLC 2,744,239 712 Basin

63 Berexco LLC 2,684,739 1,551 Cushing

64 Tana Exploration Co. LLC 2,649,679 228 Pine Prairie

65 Petro Harvester Oil & Gas LLC 2,642,309 380 Laurel

66 Patriot Resources Inc. 2,539,058 64 Wolfbone

67 Henry Resources LLC 2,533,257 195 Spraberry

68 Talos Energy LLC 2,525,127 127 Ewing Bank Block 0305

69 Smith Production Inc. 2,477,382 420 Stirling

70 Upstream Exploration LLC 2,428,774 29 Adams Ranch

71 Vernon E. Faulconer Inc. 2,426,837 503 Warmsley South

72 Stonegate Production Co. LLC 2,342,553 126 Eagleville

73 Wagner Oil Co. 2,329,949 487 La Sal Vieja Dist 4

74 Deep Gulf Energy II LLC 2,316,777 2 Mississippi Canyon Block 0773

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Rank Company BOE Total wells Largest field

75 Murex Petroleum Corp. 2,305,107 196 Sanish

76 CML Exploration LLC 2,294,874 282 Madisonville West

77 EagleRidge Energy LLC 2,254,009 164 Newark East

78 Snyder Brothers Inc. 2,223,568 3,436 Limestone Run

79 Courson Oil & Gas Inc. 2,182,902 377 Pan Petro

80 U.S. Energy Development Corp. 2,172,073 866 Newark East

81 MacPherson Oil Co. 2,129,868 433 Round Mountain

82 JMA Energy Co. LLC 2,002,522 182 Putnam

83 GeoSouthern Energy Corp. 1,969,679 143 Eagleville

84 Venture Oil & Gas Inc. (Laurel, Mississippi) 1,966,341 101 Winchester South

85 R. Lacy Inc. 1,963,784 249 Carthage

86 J. Cleo Thompson & James Cleo Thompson, Jr. 1,947,884 1,107 Means

87 Ward Petroleum Corp. 1,860,055 203 Wattenberg

88 BlackBrush Oil & Gas LP 1,847,424 259 Hugh Fitzsimmons

89 Elevation Resources LLC 1,847,039 29 Emma

90 Killam Oil Co. Ltd. 1,842,159 410 B M T

91 Sklar Exploration Co. LLC 1,779,942 72 Brooklyn

92 New Dominion LLC 1,768,478 328 Sylvian NorthEast

93 Aruba Petroleum Inc. 1,741,889 207 Newark East

94 Vess Oil Corp. 1,718,764 1,278 Kurten

95 Forge Energy LLC 1,709,204 104 Shafter Lake North

96 Discovery Operating Inc. 1,705,805 319 Spraberry

97 Enduro Resource Partners LLC 1,675,133 502 Newburg

98 Cheyenne Petroleum Co. 1,652,832 93 Eagleville

99 Jetta Operating Co. Inc. 1,646,067 335 Scott

100 Kraken Oil & Gas LLC 1,634,896 80 Oliver

Source: IHS Markit; For more information on the Private Company Database visit www.ihs.com.Production totals based on latest year-to-date figures as reported to and recorded by individual state agencies and tabulated by IHS at the time of publication. Some agencies are delayed by as many as several months in releasing data which may impact company rankings.

Rank Company BOE City State Top executive officials

51 Alta Mesa Holdings LP 3,137,684 Houston TXMichael McCabe, VP, CFO; Michael Ellis, founder, chair, COO; Lance Weaver, dir, IR; Harlan Chappelle, pres, CEO; David Murrell, VP, land, bus dev; Dave Smith, VP exp

46 Ankor Energy LLC 3,376,888New

Orleans LA

Bob Gerdes, pres; Steve Goff, VP, ops; Amy Brumfield, VP, finance, acct; Henry Welch, VP, tech, planning

93 Aruba Petroleum Inc. 1,741,889 Plano TX James Poston, CEO

36 Ballard Exploration Co. Inc. 4,613,069 Houston TX A. Ballard, pres, CEO, owner

48 BASA Resources Inc. 3,360,615 Dallas TXRobert Marshall, VP ops; Sandra Wallace, CFO; Lary Knowlton, co-founder, EVP; Michael Foster, pres, co-founder

20 Bass Companies 9,855,508 Fort Worth TX Mitchell Roper, pres; John Smitherman, VP prod

63 Berexco LLC 2,684,739 Wichita KS Adam Beren, pres, chair

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Rank Company BOE City State Top executive officials

88 BlackBrush Oil & Gas LP 1,847,424 San Antonio TX Eric Friedrichs, CFO; P. Scott Martin, CEO, pres; Mark Norville, COO

60 Border To Border Exploration LLC 2,870,423 Austin TX John Gaines, CFO; Matthew Telfer, CEO

38 Brigham Resources LLC 4,237,907 Austin TXJ. Silva, CFO; Gene Shepherd, CEO; Bud Brigham, founder, chair; Pat Medlock, EVP exp; Erik Hoover, EVP ops

57 Burnett Oil Co. Inc. 2,923,555 Fort Worth TXMichael McDowell, VP, finance, controller; George Roth, VP, exp; Anne Marion, chair; Charles Nagel, pres; Denny Whinery, VP, bus dev

29 Caerus Oil and Gas LLC 6,677,088North

Denver CO

Matthew Wurtzbacher, pres, COO; David Keyte, chair, CEO; Jeter Thomas, CFO

43 Cantera Energy 3,703,480The

Woodlands TX

John Kelly, pres, CEO, chair; Robert Roberts, SVP finance, CFO; David Balusek, VPprod, ops; Nico Garza, COO

31 Capitan Energy Inc. 6,201,402 Carlsbad NM Craig Blair, partner; Steve Blair, partner

35 Castex Energy Inc. 4,735,055 Houston TX Kevin Ikel, bus dev mgr; John Stoika, pres

98 Cheyenne Petroleum Co. 1,652,832Oklahoma

City OK

Stephen Ives, pres; Bill Spurgeon, VP eng, bus dev; Danny Parks, CFO

3 Chief Oil & Gas LLC 47,393,661 Dallas TXJohn Hinton, SVP, CFO; Marcia Simpson, SVP-eng, ops; Trevor Rees-Jones, founder, CEO

15 Citation Oil & Gas Corp. 11,531,671 Houston TXCurtis Harrell, pres, CEO; Robert Kennedy, SVP, bus dev, land; Christopher Phelps, SVP, CFO, CAO; Forrest Harrell, non-exec chair; Steve Anna, SVP, COO

76 CML Exploration LLC 2,294,874 Austin TX Lee Staiger, ops mgr; Kenneth Nelson, GM

79 Courson Oil & Gas Inc. 2,182,902 Perryton TX Kirk Courson, pres; Harold Courson, chair, founder, owner

33 Covey Park Energy LLC 5,928,141 Dallas TXJoe Townsend, dir, finance; Alan Levande, co-CEO; Sherry Hodges, VP bus dev; John Jacobi, co-CEO

32 Cox Oil LLC 6,124,580 Dallas TXBrad Cox, chair; Rodney Dykes, COO; Craig Sanders, CEO; Ken Jackson, VP, finance

19 CrownQuest Operating LLC 9,916,274 Midland TXRobert Floyd, pres; Timothy Dunn, CEO; Lee Dunn, VP, bus dev; Ken Beattie, COO, SVP; Charles Wetzel, CFO

54 DCOR LLC 2,980,736 Ventura CARobert Garcia, VP - ops; Alan Templeton, CFO; William Templeton, pres, managing member, principal

74 Deep Gulf Energy II LLC 2,316,777 Houston TX Tom Young, VP bus dev

96 Discovery Operating Inc. 1,705,805 Midland TXDon Sparks, CEO, owner; Kevin Sparks, pres; Jeffrey Sparks, VP, ops, prod

56E&B Natural Resources Management Corp.

2,965,889 Bakersfield CA Frank Ronkese, treas, CFO; Stephen Layton, pres

77 EagleRidge Energy LLC 2,254,009 Dallas TXEric Bruce, CFO; Vince Means, SVP bus dev; Mark Grawe, EVP, COO; Michael Ronca, pres, CEO

25 Eclipse Resources I LP 8,230,165State

College PA

Matthew DeNezza, EVP, CFO; Christopher Hulburt, dir, EVP, gen counsel; Benjamin Hulburt, co-founder, chair, pres, CEO; Thomas Liberatore, EVP, COO

89 Elevation Resources LLC 1,847,039 Midland TXGary Dupriest, EVP, COO; Steven Pruett, pres, CEO; Gary Causey, VP exp; Randy Spaur, CFO

14 Endeavor Energy Resources LP 12,412,149 Midland TX Autry Stephens, founder; Charles Meloy, pres, CEO

97 Enduro Resource Partners LLC 1,675,133 Fort Worth TXJonny Brumley, pres, CEO, mgr; John Arms, co-founder, mgr; Kimberly Weimer, CFO

18 Fasken Oil and Ranch Ltd. 10,624,015 Midland TXNorbert Dickman, VP, GM; Dexter Harmon, exp mgr; Jimmy Davis, dir, oil and gas ops

4 Fieldwood Energy LLC 35,985,397 Houston TXJohn Smith, SVP bus dev; Mike Dane, SVP, CFO; Matt McCarroll, founder, pres, CEO; Paul Gluth, SVP, prod, ops

95 Forge Energy LLC 1,709,204 San Antonio TXDan Weisel, CFO; Barry Winstead, founding partner, pres, CEO; Arnold Nall, co-founder, EVP ops; Daniel Boone, co-founder, VP bus dev

49 Foundation Energy Management LLC 3,243,265 Dallas TXJohn Wetzel, CFO; Eddie Rhea, CEO; Richard Payne, VP, ops, eng, geo

53 Fuse Energy LLC 2,987,704Greenwood

Village CO

Daryll Howard, COO; Ann Verzeletti, VP corp dev, eng; Shawn Canaday, CFO; David Wolf, CEO

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Rank Company BOE City State Top executive officials

83 GeoSouthern Energy Corp. 1,969,679The

Woodlands TX George Bishop, pres, founder

41 Great Western Oil & Gas Co. 3,952,360 Windsor CORich Frommer, pres, CEO; Jeremy Conger, SVP ops; Thomas Mandula, CFO

67 Henry Resources LLC 2,533,257 Midland TX Jim Henry, CEO

1 Hilcorp Energy Co. 63,285,636 Houston TXShelbie DeZell, SVP, CFO; Jeffery Hildebrand, founder, chair, CEO; Greg Lalicker, pres, COO

23 Hunt Oil Co. 9,436,209 Dallas TXSteve Suellentrop, pres; Mark Gunnin, COO; Travis Armayor, VP corp finance, bus dev; Adam Bishop, SVP exp

11 Indigo 14,601,705 Houston TXGeorge Francisco, CFO, EVP; Frank Tsuru, pres, CEO; Zach Hart, SVP, bus dev

86J. Cleo Thompson & James Cleo Thompson, Jr.

1,947,884 Dallas TX Christy Thompson, owner; Linda Gordon, dir

99 Jetta Operating Co. Inc. 1,646,067 Fort Worth TXGregory Bird, pres, CEO, owner; Zach Nix, VP, drilling, ops; John Jarrett, VP, CFO; Gordon Roberts, SVP, bus dev

82 JMA Energy Co. LLC 2,002,522Oklahoma

City OK Jeffrey McDougall, pres, owner; Richard Bross, VP bus dev

6 Jonah Energy LLC 31,383,129 Denver COGlen Mizenko, VP, asset, bus dev; L. Manaugh, pres, COO; Thomas Hart, CEO; Michael Park, VP ops

26 Kaiser-Francis Oil Co. 7,962,349 Tulsa OKHenry Kleemeier, EVP, COO; Don Millican, CFO, VP; George Kaiser, pres, CEO

90 Killam Oil Co. Ltd. 1,842,159 Laredo TX David Killam, managing partner; Radcliffe Killam, partner, corp plan

100 Kraken Oil & Gas LLC 1,634,896 Houston TX Bruce Larsen, pres, CEO; Brad Suddarth, EVP, CFO

2 LLOG Exploration Co. LLC 47,810,863 Covington LAScott Gutterman, pres, CEO; John Doughtie, VP, exp; Tim Lindsey, SVP, prod, ops; Philip LeJeune, CFO, treas; Randy Pick, VP, A&D

62 LOGOS Resources LLC 2,744,239 Farmington NM Jay McWilliams, pres

81 MacPherson Oil Co. 2,129,868Santa

Monica CA Donald MacPherson, chair, CEO; Phil Sorbet, COO, pres

5 Merit Energy Co. 33,315,601 Dallas TXMeghan Cuddihy, VP, IR; Jason Lindmark, VP, bus dev; William Gayden, pres, CEO, chair, founder

7 Mewbourne Oil Co. 27,999,814 Tyler TXKenneth Waits, CEO; J. Roe Buckley, CFO, EVP; Curtis Mewbourne, founder

75 Murex Petroleum Corp. 2,305,107 Houston TX Waldo Ackerman, founder, pres, CEO; Reagan Smith, CFO

92 New Dominion LLC 1,768,478 Tulsa OKTommy Boullt, EVP M&A; Susan Keary, CFO; Kevin Easley, pres, CEO

39 Pantera Energy Co. 3,976,909 Amarillo TX Scott Herrick, founder, VP; Jason Herrick, pres

66 Patriot Resources Inc. 2,539,058 Midland TX Benjamin Strickling, pres; Ted Collins, CEO, chair

65 Petro Harvester Oil & Gas LLC 2,642,309 Plano TXJoe Schimelpfening, SVP, COO; Dennis Justus, SVP, CFO; Gareth Roberts, chair; Scott King, VP exp, dev; Lewis Gillies, pres, CEO

16 Petro-Hunt Group 11,076,098 Dallas TXThomas Nelson, VP finance; Douglas Hunt, dir acquisitions; Tommy Moffett, VP ops; Bruce Hunt, pres

44 Pruet Production Co. 3,492,923 Jackson MS J. Hilton, VP prod; Randy James, owner

85 R. Lacy Inc. 1,963,784 Longview TX Jamey Walker, VP exp; Walt Tehan, VP ops; Mike Chery, pres

21 Red Willow Production Co. 9,750,295 Houston TX Robert Voorhees, pres, COO; Bill McFie, VP ops; Stephen Goff, CFO

55 Renaissance Offshore LLC 2,971,596 Houston TXJeff Durrant, VP, exp, dev; Skip Ward, VP ops; Mike Koenig, VP land, bus dev; Jeffrey Soine, CEO; Brian Romere, CFO

12 Samson Investment Co. 13,943,454 Tulsa OK Philip Cook, EVP, CFO; Randy Limbacher, CEO; Richard Fraley, COO

59 Sanguine Gas Exploration LLC 2,871,913 Tulsa OK Randolph Nelson, pres; Thomas Fuller, VP, finance, treas

9 Sheridan Production Co. LLC 19,323,935 Houston TXShannon Young, VP, CFO; Lisa Stewart, exec chair, pres, CEO, CIO; Mark Miertschin, VP, bus dev, mktg; Thomas Voytovich, VP, COO; Mark McCool, VP, ops

37 Silver Hill Energy Partners 4,507,087Oklahoma

City OK

Kyle Miller, pres, CEO; Matthew Huhnke, SVP, exp; Emery Petrof, EVP, COO; Jason Gordeuk, VP, drilling, ops

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Rank Company BOE City State Top executive officials

91 Sklar Exploration Co. LLC 1,779,942 Shreveport LAHoward Sklar, owner, CEO; David Barlow, VP, COO; Chris Farrell, VP, CFO; Cory Ezelle, VP exp

22 Slawson Exploration Co. Inc. 9,630,367 Wichita KS Todd Slawson, pres; Kathy Atkins, VP, CFO; Steve Slawson, VP, ops

69 Smith Production Inc. 2,477,382 Spring TX Glenn Smith, pres, CEO

78 Snyder Brothers Inc. 2,223,568 Kittanning PARichard Snyder, VP; Thomas Snyder, treas; Elmer Snyder, chair; Chuck Snyder, pres

47 Square Mile Energy 3,368,146 Houston TX Gary Loveless, chair, CEO

45 Stephens Production Co. 3,413,411 Fort Smith AR WR Stephens, pres, CEO

72 Stonegate Production Co. LLC 2,342,553 Houston TXMichael Harvey, chair, CEO; Michael Wieland, SVP, corp dev, CFO; Robert Mcdaniel, VP ops

40 Summit Petroleum LLC 3,953,371 Midland TXRyan Hamilton, VP ops, eng; Matthew Johnson, pres, COO; Mark Bruehl, VP finance; Dennis Johnson, chair, CEO

68 Talos Energy LLC 2,525,127 Houston TXTimothy Duncan, pres, CEO; Stephen Heitzman, EVP, COO; John Parker, EVP exp; John Spath, VP, prod ops; Michael Harding, SVP, CFO

64 Tana Exploration Co. LLC 2,649,679 Dallas TXEric Doss, VP, exp, geo; Scott Gladden, pres; Garrett Kimbell, VP, land, bus dev; John Petty, VP, ops; Jake Bailey, VP, CFO

50 Tellus Operating Group LLC 3,217,056 Ridgeland MS Richard Mills, CEO, mgr; Charles May, COO; Thomas Wofford, CFO

10 Templar Energy LLC 15,644,209Oklahoma

City OK David Le Norman, pres, owner

13 Texas Petroleum Investment Co. 12,521,438 Houston TX William Crawford, co-owner, principal

61 Texland Petroleum, L.P. 2,783,730 Fort Worth TXFrank Kyle, CFO, dir, co-owner; Gregory Mendenhall, VP ops; James Wilkes, pres, dir, co-owner; Bryan Lee, VP exp

52 Tidelands Oil Production Co. 3,118,453 Long Beach CADon Foster, controller; Michael Domanski, pres, CEO, GM; Mark Kapelke, VP ops, eng

80 US Energy Development Corp. 2,172,073 Getzville NY Jordon Jayson, CEO; Douglas Walch, pres

70 Upstream Exploration LLC 2,428,774 Metairie LAHarvey Kelley, VP ops; Mark Wojna, VP exp; Al Petrie, IR coord; Michael Willis, pres

30 Valence Operating Co. 6,527,604 Kingwood TX Stephen Manning, COO; Douglas Scherr, CFO; Walter Scherr, CEO

28 Vantage Energy LLC 6,706,220 Englewood CORoger Biemans, chair, CEO; Thomas Tyree, pres, CFO; John Moran, VP ops

84Venture Oil & Gas Inc. (Laurel, Mississippi)

1,966,341 Laurel MS Jay Fenton, pres; Jarvis Hensley, VP ops

71 Vernon E. Faulconer Inc. 2,426,837 Tyler TX Tom Markel, VP, acct, CFO; David Enright, pres

94 Vess Oil Corp. 1,718,764 Wichita KSBarry Hill, CEO; J. Michael Vess, chair, managing owner; Brian Gaudreau, VP, land, acq; Alan Howarter, VP, financial reporting

8 Vine Oil & Gas LP 20,399,131 Plano TX Eric Marsh, CEO; John Regan, CFO

73 Wagner Oil Co. 2,329,949 Fort Worth TXBryan Wagner, pres, owner; Mark Belcher, VP, exp, prod; Eric Alfuth, CFO; Joshua Nevin, COO

17 Walter Oil & Gas Corp. 10,859,130 Houston TX Joseph Walter, chair, geo; Ron Wilson, pres, CEO; C. Looke, VP, ops

87 Ward Petroleum Corp. 1,860,055 Enid OKDavid Stone, VP exp; Michael Hodges, CFO; Lew Ward, chair; William Ward, pres, CEO; Drew Deaton, VP finance, bus dev

27 Warren E&P Inc. 7,274,248 Casper WY Kevin McCormick, CFO

42 White Oak Energy LP 3,900,862 Houston TXMike Rayburn, COO; Thomas Isler, pres, CEO; Scott Sampsell, VP, finance, admin

34 Yates Petroleum Corp. 5,824,308 Artesia NMJohn Yates, chair; Frank Yates, EVP; Randy Patterson, VP exp, prod; Douglas Brooks, CEO, pres, board member; John Perini, CFO

58 Zarvona Energy LLC 2,891,101 Houston TXKathryn MacAskie, pres, CEO; Matthew Jurgens, VP ops; Robert MacAskie, VP, acq, finance

24 Zavanna LLC 8,266,880 Denver COWilliam Coleman, pres; Carole Slinkard, CFO; Cody Duran, VP ops; David Hodges, COO

Source: IHS Markit; For more information on the Private Company Database visit www.ihs.com.Production totals based on latest year-to-date figures as reported to and recorded by individual state agencies and tabulated by IHS at the time of publication. Some agencies are delayed by as many as several months in releasing data which may impact company rankings.

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