Active Drilling Rigs – May 2011

Posted by bakken

The number of active drilling rigs has remaining relatively steady around 172 rigs for the last 3 months.   Similarly (as shown below), the number of Rigs for the major Bakken players has also remained static with Continental Resources leading the way with 21 drilling rigs.    The notable exception was with OXY USA (a subsidiary of Occidental Petroleum (OXY: 80.87 +1.53%) ) which saw the number of rigs increase from 2 to 10.  Of course,  this was due to the acquisition of Anshutz and their rig assets,  but this has pushed OXY to one of the leading drillers in the region.  This combined with the 200,000 acres they have amassed in the region makes them a formidable producer on the Bakken horizon.  In other drilling news:

• Brigham Exploration (BEXP: 0.00 N/A) held the 4 highest initial rate wells in the region.  Brigham is expecting an eighth operated rig is to be in place by the end of May, a 9th  in June, a 10th in early July, and another 2 in the first quarter of 2012. The pace is a few months ahead of its previously announced schedule.
• Voyager Oil & Gas (VOG: 1.81 -2.69%)  has participated in approximately 40 gross wells in 2011, bringing the total well count to 58 wells targeting the Bakken/Three Forks formations. Currently, Voyager has approximately 1.80 net Bakken/Three Forks wells drilling, completing or producing. Voyager expects to participate in 70 gross wells and 6.0 net wells in 2011.  Voyager expects to average 700 barrels of oil equivalent “BOE” per day by the end of 2011.
• GeoResources Inc (GEOI: 35.28 +5.38%) is currently drilling their 4th well, the Muller #1-21-16H with an 18% working interest (WI). They have three wells on production in the area with their recently completed well, the Anderson #1-24-13H (35% WI), (completed in early April 2011) having an initial 24-hour production rate of 905 bopd.

Operator	Well Name and Number	Current Location
AMERICAN OIL & GAS INC	BLAKE 2-6H	LOT3 6-156N-97W
BAYTEX ENERGY USA LTD	GERALYN MARIE 34-163-99H 1DQ	NWNW 34-163N-99W
BAYTEX ENERGY USA LTD	COLBY 23-14-160-99H 1PB	SWSE 23-160N-99W
BRIGHAM OIL & GAS LP	ENDERUD 9-4 2H	SESW 9-152N-98W
BRIGHAM OIL & GAS LP	CHARLIE SORENSON 17-8 1-H	NWNE 20-155N-93W
BRIGHAM OIL & GAS LP	ALGER STATE 16-21 1-H	SESW 9-155N-92W
BRIGHAM OIL & GAS LP	STANLEY LARSON 8-5 1-H	SWSE 8-155N-103W
BRIGHAM OIL & GAS LP	LUCY HANSON 15-22 1-H	NWNE 15-154N-100W
BRIGHAM OIL & GAS LP	DELORME 12-1 1-H	SESW 12-154N-103W
BRIGHAM OIL & GAS LP	IRGENS 27-34 2H	NENW 27-156N-100W
BTA OIL PRODUCERS LLC	20711 SWANSON 3328 1-H	LOT3 4-154N-99W
BURLINGTON RES O&G CO	RIFLE FALLS 31-25H	NWNE 25-144N-95W
BURLINGTON RES O&G CO	INTERVALE 31-35H	NWNE 35-144N-96W
BURLINGTON RES O&G CO	MIDNIGHT RUN 21-1TFH	LOT 3 1-152N-96W
BURLINGTON RES O&G CO	SUN NOTCH 43-32H	NESE 32-153N-96W
BURLINGTON RES O&G CO	SAMUEL 34-21H	SWSE 21-148N-98W
CONTINENTAL RESOURCES	ERIC 11-24SH	NWNW 24-130N-106W
CONTINENTAL RESOURCES	GLASOE 4-18H	NWNW 18-161N-95W
CONTINENTAL RESOURCES	FREDDY 1-8H	SWSE 8-161N-95W
CONTINENTAL RESOURCES	AGNES 1-22H	SESW 22-161N-96W
CONTINENTAL RESOURCES	SALO 2-35H	SESE 35-160N-96W
CONTINENTAL RESOURCES	ROCKET 1 SWD	SENE 23-146N-96W
CONTINENTAL RESOURCES	PLETAN 2-18H	NWNW 18-146N-95W
CONTINENTAL RESOURCES	TANEY 1-14H	NENE 14-145N-97W
CONTINENTAL RESOURCES	WAHPETON 1-16H	NENW 16-152N-99W
CONTINENTAL RESOURCES	STEELE 1-24H	SESW 24-152N-99W
CONTINENTAL RESOURCES	BAILEY 3-24H	NWNE 25-150N-97W
CONTINENTAL RESOURCES	NYLA 1-17H	NWNE 17-148N-98W
CONTINENTAL RESOURCES	CALHOUN 1-3H	NWNE 3-149N-98W
CONTINENTAL RESOURCES	MONTPELIER 1-14H	NENE 14-153N-101W
CONTINENTAL RESOURCES	KUHN 1-12H	SESE 12-152N-100W
CONTINENTAL RESOURCES	VACHAL 2-27H	NWNW 27-154N-94W
CONTINENTAL RESOURCES	DEBRECEN 1-3H	LOT 3 3-140N-99W
CONTINENTAL RESOURCES	MILLOY 1-15H	SESE 15-155N-104W
CONTINENTAL RESOURCES	ROLF 1-20H	SESW 20-155N-98W
CONTINENTAL RESOURCES	STANGELAND 1-18H	SESW 18-153N-99W
CONTINENTAL RESOURCES	RENNERFELDT 1-30H	NWNE 30-155N-98W
CONTINENTAL RESOURCES	CHARLESTON 1-22H	SWSW 22-155N-98W
CORNERSTONE NAT RES LLC	JACOBSON 8-33H	SESE 33-161N-90W
DAKOTA-3 E&P CO	DAKOTA-3 PACKINEAU 15-32H	SWSE 32-149N-92W
DAKOTA-3 E&P CO	DAKOTA-3 WOLF 27-34H	NENW 27-149N-94W
DAKOTA-3 E&P CO	DAKOTA-3 ADAM GOOD BEAR 15-22H	NWNW 15-150N-92W
DENBURY ONSHORE	GILBERTSON 34-26NEH	SW-SE 26-153N-95W
DENBURY ONSHORE	LEE 34-31NWH	SWSE 31-150N-98W
DENBURY ONSHORE	JOHNSON 11-5SEH	LOT4 5-149N-97W
DENBURY ONSHORE	LUNDIN 11-15SEH	NW-NW 15-150N-98W
DENBURY ONSHORE	LOOMER 34-4NWH	SWSE 4-151N-99W
ENERGY EQUITY CO	OBRIEN SWD 1	SWSW 33-140N-99W
EOG RESOURCES INC	KANDIYOHI 5-3031H	LOT1 30-159N-90W
EOG RESOURCES INC	HORSE CAMP 101-11H	NWNW 11-149N-93W
EOG RESOURCES INC	VAN HOOK 17-23H	NWNW 23-152N-91W
EOG RESOURCES INC	LIBERTY LR 21-36H	SESW 36-151N-91W
EOG RESOURCES INC	SIDONIA 28-2722H	SESE 27-158N-90W
EOG RESOURCES INC	REDMOND 21-1807H	SESW 18-157N-89W
EOG RESOURCES INC	SIDONIA 44-2821H	SESE 28-158N-90W
EOG RESOURCES INC	ROUND PRAIRIE 7-1522H	NWNW 15-154N-103W
EOG RESOURCES INC	MONT 4-3502H	LOT2 35-155N-102W
EOG RESOURCES INC	ROUND PRAIRIE 3-0706H	SESE 7-154N-103W
FIDELITY EXPL & PROD CO	TTT RANCH 33-28H	SESE 33-155N-91W
FIDELITY EXPL & PROD CO	HILL 31-30H	SESW 31-155N-91W
G3 OPERATING LLC	MULLER 1-21-16H	SWSW 21-158N-103W
GADECO, LLC	GOLDEN 25-36H	NENW 25-155N-99W
HELIS OIL & GAS CO. LLC	KIRKLAND 13-23/14H	SWSW 23-149N-95W
HELIS OIL & GAS CO. LLC	GABBERT 4-2/11H	LOT 4 2-149N-95W
HESS CORPORATION	BONNIE DIVIDE 16-1H	NENE 16-146N-97W
HESS CORPORATION	WALLACE 7-1H	SWSE 7-143N-94W
HESS CORPORATION	ARNEGARD STATE 36-1H	SESW 36-151N-100W
HESS CORPORATION	AN-BOHMBACH-153-94- 2734H-1	NWNE 27-153N-94W
HESS CORPORATION	EN-VACHAL-155-93- 0532H-2	SWSE 5-155N-93W
HESS CORPORATION	EN-WEYRAUCH-154-93- 1918H-3	SWSE 19-154N-93W
HESS CORPORATION	EN-CHARLES WOOD-157-94 1720H-1	SESW 8-157N-94W
HESS CORPORATION	EN-CVANCARA A-155-93- 3231H-1	SENE 32-155N-93W
HESS CORPORATION	EN-RULAND A-155-94- 1201H-3	NWNE 13-155N-94W
HESS CORPORATION	EN-PERSON OBSERVATION- 11-33	NWSE 11-156N-94W
HESS CORPORATION	EN-PERSON OBSERVATION- 2-32	SWNE 2-156N-94W
HESS CORPORATION	EN-URAN B-154-93- 2932H-1	SESW 20-154N-93W
HESS CORPORATION	EN-WANDER-156-94- 0904H-1	SWSW 9-156N-94W
HESS CORPORATION	NORMAN 31-1H	SWSE 31-154N-98W
HESS CORPORATION	JOHNSON 15-22H	SESW 22-157N-97W
HESS CORPORATION	GO-SOINE A-156-97- 3229H-1	SESW 32-156N-97W
HESS CORPORATION	GO-ASLAKSON-156-97- 3427H-1	SWSE 34-156N-97W
HESS CORPORATION	GO-SOINE-156-97 3130H-1	SWSE 31-156N-97W
HUNT OIL COMPANY	HALLIDAY 1-19-18H 1	SWSE 19-146N-92W
HUNT OIL COMPANY	SHELL 1-15-10H 1	SESW 15-153N-89W
HUNT OIL COMPANY	NIELSEN 2-8H 2	NENE 8-156N-90W
KODIAK OIL & GAS (USA) INC	SKUNK CREEK 2-24-25-16H	NWNE 24-149N-93W
KODIAK OIL & GAS (USA) INC	KOALA 3-2-11-13H	LOT 3 2-151N-100W
MARATHON OIL CO	KOVALOFF 14-9H	SWSW 9-144N-95W
MARATHON OIL CO	VERLYN STROMMEN 34-8H	SWSE 8-145N-94W
MARATHON OIL CO	GOOD BEAR USA 21-14H	NENW 14-147N-93W
MARATHON OIL CO	ONE FEATHER USA 11-17H	SWSW 8-150N-90W
MARATHON OIL CO	FISHER USA 41-5H	SESE 32-151N-93W
MARATHON OIL CO	ELLA USA 11-16H	SWSW 9-151N-93W
MUREX PETROLEUM CORP	DARON WILLIAM 28-33H	NWNE 28-151N-103W
MUREX PETROLEUM CORP	MARGARET ELIZABETH 4-33H	SWSE 4-158N-95W
NEWFIELD PROD CO	SOLHEIM 160-102-28-33-1HA	SESW 21-160N-102W
NEWFIELD PROD CO	OBENOUR 150-99-28-33-1H	SWSW 21-150N-99W
NEWFIELD PROD CO	DROVDAL 150-99-8-5-1H	SESW 8-150N-99W
NEWFIELD PROD CO	LAWLAR 151-98-31-30-1H	SESW 31-151N-98W
NEWFIELD PROD CO	STAAL 150-99-23-14-1H	SWSE 23-150N-99W
NORTH PLAINS ENERGY LLC	FLATLAND 9-9H	NESE 9-153N-97W
NORTH PLAINS ENERGY LLC	EVITT 16-12H	SESE 12-154N-98W
OASIS PETRO NO AMER	BAY CREEK FEDERAL 4703 11-5H	LOT 4 5-147N-103W
OASIS PETRO NO AMER	KLINE FEDERAL 5300 11-18H	LOT1 18-153N-100W
OASIS PETRO NO AMER	SPRATLEY 5494 34-13H	NESE 13-154N-94W
OASIS PETRO NO AMER	DAVIS 5300 42-12H	SESW 12-153N-100W
OASIS PETRO NO AMER	LYNN 5502 11-10H	NWNW 10-155N-102W
OASIS PETRO NO AMER	ROSS 5603 42-10H	SESW 10-156N-103W
OXY USA INC	SWENSON 160-91-4-P-1H	SESE 4-160N-91W
OXY USA INC	ERICKSON 160-91-8-D-1H	NWNW 8-160N-91W
OXY USA INC	EVELYN STROH 1-17-20H-143-96	SWSE 8-143N-96W
OXY USA INC	REUBEN SCHNEIDER 1-27-34H-143-96	NENW 27-143N-96W
OXY USA INC	SCHNEIDER 1-33-28H-143-96	SESW 33-143N-96W
OXY USA INC	LAMEY 1-30-31H-143-96	NENW 30-143N-96W
OXY USA INC	NOVASIO STATE 1-16-21H-142-95	NWNE 16-142N-95W
OXY USA INC	WANNEMACHER 1-4-9H-142-95	SWSE 33-143N-95W
OXY USA INC	STATE JAEGER 1-21-16H-142-94	SWSW 21-142N-94W
OXY USA INC	KUDRNA 1-17	SWSE 17-141N-97W
PEAK NO DAK LLC	BAKER 29-31H	SWSE 20-149N-92W
PEAK NO DAK LLC	DANKS 20-41H	SESE 17-151N-94W
PETRO HUNT LLC	WOLD 159-94-5C-32-2H	SWSW 5-159N-94W
PETRO HUNT LLC	VAN HISE TRUST 153-95-28C-21-1H	SESW 28-153N-95W
PETRO HUNT LLC	KLEVMOEN TRUST 17D-4-3H	SESE 17-153N-95W
PETRO HUNT LLC	SKEDSVOLD 150-101-4B-9-1H	LOT 3 4-150N-101W
PETRO HUNT LLC	FORT BERTHOLD 152-94-22D-15-2H	SESE 22-152N-94W
PETRO HUNT LLC	BORRUD 156-101-11D-2-1H	SESE 11-156N-101W
PETRO HUNT LLC	STATE 157-100-21C-16-1H	SWSW 21-157N-100W
PRIDE ENERGY OK GEN	BEAVER CREEK STATE 1-36H	SESW 36-143N-103W
QEP ENERGY CO	MHA 1-01-02H-149-91	SWSE 6-149N-90W
QEP ENERGY CO	ERICKSON 1-26-25H-155-102	NWSW 26-155N-102W
SAMSON RESOURCES CO	MUSTANG 7-6-163-98H	NWNE 18-163N-98W
SAMSON RESOURCES CO	BLUE JAY 32-29-163-95H	LOT3 5-162N-95W
SAMSON RESOURCES CO	LE MANS 11-2-163-99H	NWNE 14-163N-99W
SEQUEL ENERGY LLC	RIDER 4-13	NWSE 13-140N-103W
SEQUEL ENERGY LLC	BULL MOOSE 22Y-32	SWNE 22-147N-101W
SINCLAIR OIL & GAS CO	MARTENS 2-5H	LOT2 5-154N-92W
SLAWSON EXPLORATION	DAGGER 1-10H	NENW 10-144N-97W
SLAWSON EXPLORATION	ORCA FEDERAL 1-23-26H	SWSE 14-152N-92W
SLAWSON EXPLORATION	HUNTER 2-8-17H	SWSE 5-151N-92W
SLAWSON EXPLORATION	WIZARD 2-35H	NENE 35-152N-93W
SLAWSON EXPLORATION	MUSKRAT FEDERAL 2-28-33H	NENE 28-151N-92W
SLAWSON EXPLORATION	JAGUAR 2-32H	NWNW 32-151N-92W
SM ENERGY CO	BAGLEY 4-30H	LOT1 30-163N-100W
SM ENERGY CO	BARNES 2-2H	LOT2 2-152N-102W
TRUE OIL LLC	HAGEN 23-13H	NESW 13-148N-101W
WARD-WILLISTON CO	NWMU A-10H	SESE 36-164N-80W
WHITING OIL AND GAS CORP	CLEMENS 34-9TFH	SWSE 9-143N-102W
WHITING OIL AND GAS CORP	MAUS 23-22	NESW 22-141N-104W
WHITING OIL AND GAS CORP	KUMMER 34-31H	SWSE 31-149N-99W
WHITING OIL AND GAS CORP	REGINA ANNALA 12-33TFH	SWNW 33-153N-91W
WHITING OIL AND GAS CORP	LINDSETH 11-1TFH	LOT4 1-154N-92W
WHITING OIL AND GAS CORP	MERILYN SMITH 12-7TFH	LOT 2 7-153N-91W
WHITING OIL AND GAS CORP	SNYDER 21-11H	NENW 11-153N-91W
WHITING OIL AND GAS CORP	PETERSON 34-35TFH	SWSE 35-153N-92W
WHITING OIL AND GAS CORP	FLADELAND 14-18WH	SWSW 18-153N-91W
WHITING OIL AND GAS CORP	LAUKALA 34-22TFH	SWSE 22-154N-91W
WHITING OIL AND GAS CORP	NESHEIM 11-24XH	NWNW 24-153N-91W
WHITING OIL AND GAS CORP	LACEY 12-1TFH	SWNW 1-152N-92W
WHITING OIL AND GAS CORP	DIETZ 21-18TFH	NENW 18-139N-99W
WHITING OIL AND GAS CORP	TALKINGTON 21-30TFH	NENW 30-140N-99W
WHITING OIL AND GAS CORP	BINSTOCK 21-30TFH	NENW 30-139N-99W
XTO ENERGY INC	FBIR BIRD 31X-19	NWNE 19-149N-91W
XTO ENERGY INC	TEDDY FEDERAL 12X-5	SWNW 5-148N-97W
XTO ENERGY INC	WILLIAM 41X-6	LOT1 6-148N-96W
XTO ENERGY INC	NELSEN STATE 24X-33	SESW 33-153N-101W
XTO ENERGY INC	ALBERTINE 21X-2	LOT 3 2-157N-96W
XTO ENERGY INC	LEACH STATE 12X-16	SWNW 16-155N-95W
ZAVANNA LLC	GUST 2-11 1H	LOT 4 2-153N-99W
ZAVANNA LLC	EVERETT 1-15H	SESE 15-154N-99W
ZENERGY INC	LAWLAR 23-14H	NWNE 26-151N-99W
ZENERGY INC	ROLFSON 20-17H	NWNE 29-151N-98W
ZENERGY INC	LINK 12-1H	SESW 12-150N-102W

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Active Drilling Rigs – June 4th 2010

Posted by bakkenexpert

There has been quite a bit of activity since our last review of the active drilling rig report 4 months ago. The number of rigs is up to 121 which represents a 20% increase since March. Continental Resources (CLR: 77.50 +8.68%) has really stepped up their drilling activity and now has 17 drilling rigs versus the 11 they had in March. EOG (EOG: 100.20 +4.04%)  has kept the number of rigs it has in operation constant at 13 and Whiting Petroleum [WLL] has increased from 9 to 11.   With the well publicized PR issue offshore drilling now has due to the BP Gulf fiasco,  the Bakken region may actually be viewed as a flight to quality and potentially less risky as offshore counterparts.  The market is down over 200 points due to poor employment data that was released this morning.  Oil stocks have suffered with most Bakken plays being down 3-5%.

. Rig Operator Well Name and Number Start Date ** Next Location . ENSIGN 24 AMERICAN OIL & GAS INC BERGSTROM 15-23H 4/21/2010 Undetermined . NABORS 486 AMERICAN OIL & GAS INC JOHNSON 15-35H 5/12/2010 Undetermined . UNIT 234 ANSCHUTZ EXPL CORP SADOWSKY 34-12H 5/3/2010 Undetermined . BRONCO 16 ANSCHUTZ EXPL CORP BREW 1-13-12H-143-96 4/28/2010 Undetermined . WHITE MT. 272 ANSCHUTZ EXPL CORP JAEGER STATE 1-34-27H-144-97 5/30/2010 Undetermined . NABORS 413 ANSCHUTZ EXPL CORP RAPHAEL STROH 1-13-24H-143-97 4/25/2010 18424 . H & P 255 ANSCHUTZ EXPL CORP STATE 1-36-25H-143-97 5/11/2010 Undetermined . ENSIGN 67 BAYTEX ENERGY USA LTD HALL 3-161-98H 5/20/2010 Undetermined . NABORS 52 BRIGHAM OIL & GAS LP WRIGHT 4-33 1-H 5/19/2010 Undetermined . NABORS 49 BRIGHAM OIL & GAS LP ABE OWAN 21-16 1-H 5/23/2010 Undetermined . NABORS 266 BRIGHAM OIL & GAS LP LARSEN 3-10 1-H * MIRU Undetermined . NABORS 182 BRIGHAM OIL & GAS LP MICHAEL OWAN 26-35 1-H 5/16/2010 Undetermined . NABORS 350 BRIGHAM OIL & GAS LP WEISZ 11-14 1-H 5/18/2010 Undetermined . SST 68 BTA OIL PRODUCERS LLC 20711 PAULSON 49 1-H 4/15/2010 Undetermined . STONEHAM 17 BURLINGTON RES O&G CO TETON 21-3H 6/1/2010 Undetermined . NABORS 59 BURLINGTON RES O&G CO HAYMAKER 21-15H 5/26/2010 Undetermined . PRECISION 825 BURLINGTON RES O&G CO HARLEY 31-2H 6/2/2010 Undetermined . CYCLONE 18 CONTINENTAL RESOURCES MPHU 44-9 5/6/2010 MPHU 24-19H . CYCLONE 9 CONTINENTAL RESOURCES MONTE 12-19NH 5/17/2010 Undetermined

. CYCLONE 1 CONTINENTAL RESOURCES DUAINE 31-4SH 4/24/2010 Duaine 31-4NH . CYCLONE 23 CONTINENTAL RESOURCES UXBRIDGE 1-9H 5/14/2010 Undetermined . PRECISION 832 CONTINENTAL RESOURCES LONG 2-5H * MIRU Undetermined . CYCLONE 31 CONTINENTAL RESOURCES SHONNA 2-15H 4/30/2010 Div: SE SE 19-161-95 – Raymo-Glasoe ecopad. . CYCLONE 20 CONTINENTAL RESOURCES LANCE 1-36H * MIRU Undetermined . PATTERSON 490 CONTINENTAL RESOURCES HOWARD 1-5H 5/26/2010 Undetermined . CYCLONE 22 CONTINENTAL RESOURCES MEDICINE HOLE 2-27T 5/14/2010 Undetermined . CYCLONE 28 CONTINENTAL RESOURCES ARTHUR 2-12H 5/23/2010 Undetermined . PATTERSON 183 CONTINENTAL RESOURCES BONNEY 2-3M 5/20/2010 Undetermined . CYCLONE 14 CONTINENTAL RESOURCES MILES 2-6T 6/1/2010 Undetermined . PATTERSON 180 CONTINENTAL RESOURCES BOHMBACH 2-35H 5/5/2010 Undetermined . CYCLONE 21 CONTINENTAL RESOURCES OLSON 2-8H 5/31/2010 Undetermined . CYCLONE 10 CONTINENTAL RESOURCES KARI 1-19H 5/21/2010 Undetermined . CYCLONE 25 CONTINENTAL RESOURCES RICKY 1-18H 4/21/2010 Undetermined . CYCLONE 19 CONTINENTAL RESOURCES LEE 1-20H 4/26/2010 Undetermined . TRINIDAD 36 CONTINENTAL RESOURCES BJELLA 1-24H 5/19/2010 Undetermined . PIONEER 42 CORNERSTONE NAT RES LLC JORGENSEN 4 – 4H 5/14/2010 Undetermined . RED HAWK 357 CORNERSTONE NAT RES LLC SCHWARTZ 4-11H * MIRU Undetermined . PATTERSON 305 ENCORE OPERATING LP FRANCHUK 44-20SWH 5/21/2010 Undetermined . PRECISION 289 ENCORE OPERATING LP KLAMM 34-9NWH 4/25/2010 Undetermined

. RED HAWK 351 EOG RESOURCES INC BOUNDARY 1-11H 5/18/2010 Undetermined . TRUE 32 EOG RESOURCES INC MANDAREE 2-09H 5/31/2010 Undetermined . DHS 10 EOG RESOURCES INC ROSS 20-16H 5/22/2010 Undetermined . NABORS 148 EOG RESOURCES INC LIBERTY 4-13H 5/24/2010 Undetermined . BRONCO 28 EOG RESOURCES INC ROSS 11-27H 5/28/2010 Undetermined . TRUE 33 EOG RESOURCES INC FERTILE 17-21H 5/9/2010 Van Hook 8-36′ . MAJOR 43 EOG RESOURCES INC SIDONIA 10-2128H 6/1/2010 Undetermined . TRUE 28 EOG RESOURCES INC SIDONIA 16-12H 4/16/2010 Mandaree . DHS 12 EOG RESOURCES INC CLEARWATER 14-31H 5/12/2010 Undetermined . NABORS 527 EOG RESOURCES INC WAYZETTA 129-08H 5/12/2010 Burke 32-05 . NABORS 161 EOG RESOURCES INC LIBERTY 23-12H 5/16/2010 Undetermined . BRONCO 23 EOG RESOURCES INC AUSTIN 125-30H 5/31/2010 Undetermined . NABORS 254 EOG RESOURCES INC MONT 1-28H 5/21/2010 Undetermined . NABORS 108 FIDELITY EXPL & PROD CO HARSTAD 44-9H 5/15/2010 Undetermined . PRECISION 604 HELIS OIL & GAS CO. LLC ANDRECOVICH 5-17/16H 4/17/2010 Undetermined . H & P 179 HESS CORPORATION AV-HANSEN-163-94- 1918H-1 5/13/2010 DIV: SW SE 11-162-95 – AV-Kimball-162-95 #1102 H-1 . NABORS 460 HESS CORPORATION HA-STATE-152-95- 1621H-1 4/8/2010 Undetermined . H & P 293 HESS CORPORATION EN-WILL TRUST A-157-94- 2734H-1 5/6/2010 Undetermined . NABORS 1 HESS CORPORATION RS-SHUHART-156-90- 2726H-1 6/2/2010 Undetermined . H & P 241 HESS CORPORATION EN-REHAK-155-93- 0718H-1 4/17/2010 Abrahamson

. NABORS 2 HESS CORPORATION BLOU 13 4/26/2010 Undetermined . H & P 317 HUNT OIL COMPANY PALERMO MCNIC 1-22-23H 5/4/2010 Undetermined . BRONCO 20 HUNT OIL COMPANY PALERMO 1-13-12H 1 5/27/2010 Undetermined . UNIT 117 KODIAK OIL & GAS (USA) INC TWO SHIELDS BUTTE 14-21-4H 5/20/2010 Undetermined . H & P 257 MARATHON OIL CO BERNHARDT 14-7H 5/15/2010 Undetermined . H & P 259 MARATHON OIL CO SCOTT GAUGLER 14-24H 5/27/2010 Undetermined . H & P 386 MARATHON OIL CO TESCHER 11-27H 5/17/2010 Undetermined . H & P 258 MARATHON OIL CO ARVID BANGEN USA 31-18H 5/29/2010 Undetermined . H & P 256 MARATHON OIL CO JASPER L USA 34-5H 4/30/2010 Undetermined . KEY NRG 257 MUREX PETROLEUM CORP MEGAN BROOKE 15-22H 5/31/2010 Undetermined . PRECISION 602 MUREX PETROLEUM CORP CLAIRE ALEXIS 33-4H 5/21/2010 Undetermined . NABORS 419 NADEL AND GUSSMAN ROCKIES ANDERSON 2-18 5/23/2010 Undetermined . WHITE MT. 750 NEWFIELD PROD CO MUKWA 1-17H 5/31/2010 Undetermined . NABORS 277 NEWFIELD PROD CO HAROLD 1-31H 5/2/2010 Undetermined . NABORS 272 NEWFIELD PROD CO WAHUS 1-12H 5/28/2010 Undetermined . H & P 286 NEWFIELD PROD CO DAHL 1-5H 4/29/2010 Undetermined . ENSIGN 89 NORTH PLAINS ENERGY LLC SCANLAN 3-5H * MIRU Undetermined . NABORS 165 OASIS PETRO NO AMER ERNST 6092 42-31H 5/11/2010 Manhattan 5792 11-2H . STONEHAM 18 OASIS PETRO NO AMER MISSOURI 5302 44-35H * MIRU Undetermined . NABORS 149 OASIS PETRO NO AMER BERRY 5493 11-6H 5/8/2010 Undetermined

. NABORS 177 OASIS PETRO NO AMER CONTRERAS 5502 42-7H * MIRU Undetermined . UNIT 328 PEAK GRASSLANDS LLC WISNESS 21-34H 5/14/2010 Baker well pad in Heart Butte . ENSIGN 93 PETRO HUNT LLC FORT BERTHOLD 148-94-9D-04-1H 4/29/2010 Undetermined . BRONCO 22 PETRO HUNT LLC FORT BERTHOLD 147-94-3A-10-1H 5/25/2010 Undetermined . ENSIGN 46 PETRO HUNT LLC USA 153-96-24D-13-1H 4/14/2010 Undetermined . BRONCO 8 PETRO HUNT LLC USA 10B-2-4H 4/10/2010 Undetermined . UNIT 329 QUESTAR E & P CO MHA 2-06-01H-149-92 4/20/2010 Undetermined . KEY NRG 370 SAGEBRUSH RESOURCES LLC ERICKSON ET AL 1B 5/21/2010 Undetermined . NABORS 455 SAMSON RESOURCES CO ANTONSON 01-12-163-95H 6/2/2010 Undetermined . PRECISION 512 SIMRAY GP LLC HENRY BAD GUN 8D-5-1H 4/27/2010 Undetermined . PATTERSON 136 SINCLAIR OIL & GAS CO ANDERSON 1-6H 5/21/2010 Undetermined . NABORS 687 SLAWSON EXPLORATION ALAMO 1-19-18H 5/28/2010 Undetermined . RED HAWK 558 SLAWSON EXPLORATION DIAMONDBACK 1-21H 5/27/2010 Undetermined . CYCLONE 27 SLAWSON EXPLORATION OSPREY FEDERAL 1-26-25-30H 4/29/2010 Undetermined . PATTERSON 167 SLAWSON EXPLORATION NEPTUNE 1-15H 5/15/2010 Undetermined . UNIT 106 SLAWSON EXPLORATION PHOENIX 1-18H 5/15/2010 Undetermined . PRECISION 645 SLAWSON EXPLORATION PIKE FEDERAL 1-3-2H * MIRU Undetermined . NABORS 152 ST MARY LAND & EXPLORATION CO GULBRANSON 4-26H 5/30/2010 Undetermined . NABORS 476 ST MARY LAND & EXPLORATION CO NORBY 16-20H 5/23/2010 Undetermined . PRECISION 618 TRACKER RES DEVMNT CRYING TREE 8-1H * MIRU Undetermined

. PRECISION 620 TRACKER RES DEVMNT DIRKACH 34-1H * MIRU Undetermined . NABORS 44 TRACKER RES DEVMNT WING 9-1H 5/27/2010 Undetermined . PIONEER 44 WHITING OIL AND GAS CORP ELLISON CREEK 11-1TFH 5/13/2010 Undetermined . PIONEER 57 WHITING OIL AND GAS CORP OPPEBOEN 12-5H 4/28/2010 Undetermined . NABORS 99 WHITING OIL AND GAS CORP KANNIANEN 43-31H 4/16/2010 Miller 43-10H . PRECISION 520 WHITING OIL AND GAS CORP CARKUFF 12-24H 5/16/2010 Undetermined . PIONEER 67 WHITING OIL AND GAS CORP LITTLEFIELD 21-12H * MIRU Undetermined . PRECISION 106 WHITING OIL AND GAS CORP FLADELAND 12-10H 5/15/2010 Undetermined . BRONCO 59 WHITING OIL AND GAS CORP FLADELAND 43-9H 5/27/2010 Undetermined . PIONEER 66 WHITING OIL AND GAS CORP TTT RANCH 4-6TFH 5/22/2010 Undetermined . PIONEER 56 WHITING OIL AND GAS CORP PETERSON 13-4H 5/17/2010 Undetermined . PRECISION 51 WHITING OIL AND GAS CORP DISHMAN 13-19H 5/26/2010 Undetermined . PIONEER 3 WHITING OIL AND GAS CORP FROEHLICH 44-9TFH 5/29/2010 Undetermined . NABORS 686 WHITING OIL AND GAS CORP KUBAS 11-13TFH 5/1/2010 Undetermined . NABORS 265 XTO ENERGY INC MARLENE 42X-20 5/19/2010 Undetermined . PATTERSON 191 XTO ENERGY INC BRONSON 31X-14 5/20/2010 Undetermined . NABORS 681 XTO ENERGY INC NELSON 34X-19 5/13/2010 Undetermined . NABORS 742 XTO ENERGY INC BOE STATE 31X-16 5/16/2010 Undetermined . NABORS 688 ZAVANNA LLC GARY 1-24H 5/24/2010 Undetermined . BRONCO 27 ZENERGY INC STEPANEK 8-5H 5/18/2010 Undetermined

. PRECISION 96 ZENERGY OPERATING CO LLC DAKOTA-3 HIGH HAWK 4-9H 5/28/2010 Undetermined . PRECISION 517 ZENERGY OPERATING CO LLC DAKOTA-3 OLSON 1-12H 4/24/2010 Mason 2-11

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