### BARRELS FORMATION OIL PRODUCEDPERCENTWELLS* Bakken 6597362.0248 205 Bakken/Three Forks 600.0002 1 Birdbear 9937723.0501 40 Cambro/Ordovician 219050.0672 2 Dawson Bay 734960.2256 3 Devonian 11876753.6452 53 Duperow 13092094.0182 114 Gunton 135710.0417 1 Heath 471575 1.4473 58 Lodgepole 703995721.6069 29 Madison 1154384235.4301 2052 Midale/Nesson 2950150.9055 15 Ordovician 503797 1.5462 42 Ratcliffe 271710.0834 3 Red River 17469375.3617 188 Red River "B" 385724911.8386 201 Red River "C" 24440.0075 1 Sanish 742900.2280 13 Silurian 8306292.5493 69 Souris River 30710.0094 1 Spearfish 143980.0442 8 Spearfish/Charles 555421 1.7047 115 Spearfish/Madison 547320.1680 38 Stonewall 448337 1.3760 39 Tyler 7480252.2958 43 Winnipeg 18130.0056 1 Winnipeg/Deadwood 22400.0069 3 Winnipegosis 1016650.3120 15 1999 TOTAL 32582032 3353

*Well count for December 1999. 1999 NORTH DAKOTA OIL PRODUCTION BY FORMATION

### BARRELS FORMATION OIL PRODUCEDPERCENTWELLS* Bakken 6188521.9091 199 Birdbear 17488885.3952 49 Birdbear-Duperow 104420.0322 1 Cambro/Ordovician 156560.0483 2 Dawson Bay 450190.1389 3 Devonian 13570864.1865 56 Duperow 12568563.8773 114 Heath 4117221.2701 54 Lodgepole 615518618.9883 29 Madison 1182985136.4942 2085 Midale/Nesson 2065860.6373 18 Ordovician 448049 1.3822 43 Ratcliffe 252930.0780 3 Red River 19622626.0534 188 Red River "B" 3030501 9.3489 186 Red River "C" 15020.0046 1 Sanish 746240.2302 13 Silurian 8035212.4788 69 Souris River 287210.0886 1 Spearfish 140570.0434 9 Spearfish/Charles 576377 1.7781 119 Spearfish/Madison 617960.1906 40 Stonewall 5834861.8000 46 Tyler 7278042.2452 44 West Red River 2371910.7317 25 Winnipeg 1420.0004 1 Winnipeg/Deadwood 18790.0058 3 Winnipegosis 1823500.5625 19 2000 TOTAL 32415699 3420 2000 NORTH DAKOTA OIL PRODUCTION BY FORMATION *Well count for December 2000.

### BARRELS FORMATION OIL PRODUCED PERCENT WELLS* Bakken 584176 1.8627 201 Birdbear 1467437 4.6790 56 Birdbear-Duperow 10182 0.0325 1 Cambro/Ordovician 17756 0.0566 2 Dawson Bay 41825 0.1334 3 Devonian 1339888 4.2723 58 Duperow 1163196 3.7089 119 Heath 368397 1.1746 51 Lodgepole 5104797 16.2768 29 Madison 12170971 38.8075 2106 Midale/Nesson 137209 0.4375 18 Ordovician 423979 1.3519 43 Ratcliffe 23538 0.0751 4 Red River 2016983 6.4312 197 Red River "B" 3008420 9.5924 204 Red River "C" 343 0.0011 1 Sanish 77412 0.2468 14 Silurian 817243 2.6058 62 Souris River 8674 0.0277 1 Spearfish 13668 0.0436 9 Spearfish/Charles 586291 1.8694 117 Spearfish/Madison 54757 0.1746 34 Stonewall 650300 2.0735 49 Tyler 659186 2.1018 47 West Red River 171168 0.5458 21 Winnipeg/Deadwood 1559 0.0050 3 Winnipegosis 443071 1.4127 21 2001 TOTAL 31362426 3471 2001 NORTH DAKOTA OIL PRODUCTION BY FORMATION *Well count for December 2001.

### BARRELS FORMATION OIL PRODUCEDPERCENTWELLS*

BAKKEN 560323 1.8394 195 BAKKEN/THREE FORKS 321 0.0011 2 BIRDBEAR 894038 2.9349 57 CAMBRO/ORDOVICIAN 14284 0.0469 3 DAWSON BAY 44597 0.1464 4 DEVONIAN 1316345 4.3212 58 DUPEROW 1041147 3.4178 118 GUNTON 4745 0.0156 2 HEATH 301519 0.9898 48 LODGEPOLE 4532007 14.8774 30 MADISON 12259235 40.2438 2094 MIDALE/NESSON 101978 0.3348 20 MISSION CANYON 1245 0.0041 2 ORDOVICIAN 684768 2.2479 48 RATCLIFFE 20362 0.0668 5 RED RIVER 1991776 6.5385 188 RED RIVER B 3516273 11.5430 249 SANISH 70137 0.2302 14 SILURIAN 775085 2.5444 66 SOURIS RIVER 1112 0.0037 2 SPEARFISH 12959 0.0425 11 SPEARFISH/CHARLES 557930 1.8315 115 SPEARFISH/MADISON 55714 0.1829 38 STONEWALL 546419 1.7937 44 TYLER 577833 1.8969 48 TYLER A 34090 0.1119 6 WEST RED RIVER 162982 0.5350 22 WINNIPEG/DEADWOOD 1685 0.0055 4 WINNIPEGOSIS 381495 1.2523 21 

### 2002 TOTAL 30462404 3514 2002 NORTH DAKOTA OIL PRODUCTION BY FORMATION

XVIII *Well count for December 2002.FORMATION BARRELS OIL PRODUCED PERCENTWELLS BAKKEN 523682 1.8008 195 BIRDBEAR 800444 2.7525 59 CAMBRO/ORDOVICIAN 15525 0.0534 2 DAWSON BAY 45326 0.1559 3 DEVONIAN 1313156 4.5156 58 DUPEROW 925913 3.1839 116 HEATH 286907 0.9866 47 LODGEPOLE 3843486 13.2166 30 MADISON 11766767 40.4625 2062 MIDALE/NESSON 82708 0.2844 19 MISSION CANYON 3476 0.0120 1 ORDOVICIAN 813476 2.7973 58 RATCLIFFE 17263 0.0594 4 RED RIVER 1814212 6.2385 184 RED RIVER B 3959158 13.6144 260 SANISH 67798 0.2331 13 SILURIAN 686796 2.3617 59 SPEARFISH 12195 0.0419 10 SPEARFISH/CHARLES 514496 1.7692 113 SPEARFISH/MADISON 56972 0.1959 38 STONEWALL 508367 1.7481 46 TYLER 502011 1.7263 44 TYLER A 19916 0.0685 4 WEST RED RIVER 153452 0.5277 19 WINNIPEG 14 0.0000 1 WINNIPEG/DEADWOOD 1975 0.0068 3 WINNIPEGOSIS 345190 1.1870 19 2003 TOTALS 29080681 100.0000 3467 

## 2003 NORTH DAKOTA OIL PRODUCTION BY FORMATIONFORMATION BARRELS OIL PRODUCED PERCENT WELLS BAKKEN 522235 1.6959 202 BIRDBEAR 1020546 3.3141 77 CAMBRO/ORDOVICIAN 11141 0.0362 2 DAWSON BAY 32728 0.1063 3 DEVONIAN 1175719 3.8180 57 DUPEROW 937473 3.0443 118 HEATH 240486 0.7809 47 LODGEPOLE 2953590 9.5914 29 MADISON 11948961 38.8028 2045 MIDALE/NESSON 75341 0.2447 19 MISSION CANYON 3188 0.0104 1 ORDOVICIAN 599883 1.9480 65 RATCLIFFE 14911 0.0484 4 RED RIVER 1828592 5.9381 181 RED RIVER B 6627921 21.5234 231 SANISH 64745 0.2103 13 SILURIAN 650372 2.1120 58 SPEARFISH 12619 0.0410 11 SPEARFISH/CHARLES 470161 1.5268 109 SPEARFISH/MADISON 53354 0.1733 40 STONEWALL 591471 1.9207 52 TYLER 465055 1.5102 43 TYLER A 27566 0.0895 4 WEST RED RIVER 177029 0.5749 16 WINNIPEG/DEADWOOD 1521 0.0049 3 WINNIPEGOSIS 287445 0.9334 16 2004 TOTALS 30794053 100.0000 3446 

## 2004 NORTH DAKOTA OIL PRODUCTION BY FORMATION

1

# 2005 North Dakota Oil Production by Formation

Formation Barrels of Oil ProducedPercentWells BAKKEN 985496 2.7902 226 BIRDBEAR 1305418 3.6960 96 CAMBRO/ORDOVICIAN 15214 0.0431 2 DAWSON BAY 35759 0.1012 3 DEVONIAN 1098339 3.1097 58 DUPEROW 904296 2.5603 119 HEATH 194320 0.5502 43 LODGEPOLE 2076906 5.8803 29 MADISON 11732155 33.2172 2069 MIDALE/NESSON 76068 0.2154 22 MISSION CANYON 2879 0.0082 1 ORDOVICIAN 593650 1.6808 57 RATCLIFFE 13555 0.0384 4 RED RIVER 1911464 5.4119 200 RED RIVER B 11922208 33.7553 239 SANISH 65811 0.1863 13 SILURIAN 584537 1.6550 56 SPEARFISH 15766 0.0446 11 SPEARFISH/CHARLES 439246 1.2436 105 SPEARFISH/MADISON 48149 0.1363 36 STONEWALL 512509 1.4511 49 TYLER 482040 1.3648 43 TYLER A 32881 0.0931 3 WINNIPEG 40 0.0001 1 WINNIPEG/DEADWOOD 1101 0.0031 2 WINNIPEGOSIS 269703 0.7636 16 2005 Totals 35319510100.00003503

# 2006 North Dakota Oil Production by Formation

Formation Barrels of Oil Produced Percent Wells BAKKEN 2245411 5.6740 300 BIRDBEAR 1242060 3.1386 109 CAMBRO/ORDOVICIAN 15754 0.0398 2 DAWSON BAY 34061 0.0861 3 DEVONIAN 962058 2.4311 59 DUPEROW 901638 2.2784 121 GUNTON 18822 0.0476 1 HEATH 220369 0.5569 40 LODGEPOLE 1596325 4.0338 29 MADISON 11680192 29.5151 2107 MIDALE/NESSON 155200 0.3922 30 MISSION CANYON 2213 0.0056 1 ORDOVICIAN 533782 1.3488 55 RATCLIFFE 11876 0.0300 4 RED RIVER 1871889 4.7301 203 RED RIVER B 15706913 39.6903 269 SANISH 67118 0.1696 13 SILURIAN 593657 1.5001 55 SPEARFISH 15465 0.0391 9 SPEARFISH/CHARLES 416980 1.0537 106 SPEARFISH/MADISON 63128 0.1595 36 STONEWALL 463033 1.1701 51 TYLER 433896 1.0964 45 TYLER A 31035 0.0784 4 WINNIPEG/DEADWOOD 1267 0.0032 2 WINNIPEGOSIS 289508 0.7316 16 2006 Total 39573650 100.0000 3670

# 2007North Dakota Oil Production by Formation

Formation Barrels of Oil Produced Percent Wells BAKKEN 7382025 16.5139 457 BIRDBEAR 1153949 2.5814 111 CAMBRO/ORDOVICIAN 12489 0.0279 2 DAWSON BAY 31178 0.0697 3 DEVONIAN 992888 2.2211 62 DUPEROW 806651 1.8045 121 GUNTON 16729 0.0374 1 HEATH 180224 0.4032 40 LODGEPOLE 1331618 2.9789 29 MADISON 11352593 25.3962 2123 MIDALE/NESSON 178634 0.3996 28 MISSION CANYON 1967 0.0044 1 ORDOVICIAN 471503 1.0548 54 RATCLIFFE 10512 0.0235 4 RED RIVER 1891163 4.2306 209 RED RIVER B 16722579 37.4091 278 RIVAL 17291 0.0387 4 SANISH 61987 0.1387 13 SILURIAN 576815 1.2904 56 SPEARFISH 21612 0.0483 13 SPEARFISH/CHARLES 374252 0.8372 109 SPEARFISH/MADISON 53579 0.1199 36 STONEWALL 417206 0.9333 50 TYLER 374096 0.8369 42 TYLER A 29680 0.0664 4 WINNIPEG/DEADWOOD 1371 0.0031 3 WINNIPEGOSIS 237343 0.5309 19 2007 Total 44701934 100.0000 3872

# 2008 North Dakota Oil Production by Formation

Formation Barrels of Oil Produced Percent Wells BAKKEN 27233329 43.6698 881 BIRDBEAR 908059 1.4561 117 CAMBRO/ORDOVICIAN 12549 0.0201 2 DAWSON BAY 26233 0.0421 3 DEVONIAN 952526 1.5274 62 DUPEROW 746653 1.1973 114 GUNTON 5029 0.0081 1 HEATH 206673 0.3314 38 LODGEPOLE 1160293 1.8606 28 MADISON 11022447 17.6750 2133 MIDALE/NESSON 342726 0.5496 36 MISSION CANYON 1576 0.0025 1 ORDOVICIAN 441636 0.7082 51 RATCLIFFE 11052 0.0177 4 RED RIVER 1772346 2.8420 208 RED RIVER B 15467112 24.8022 304 RIVAL 14483 0.0232 3 SANISH 99408 0.1594 16 SILURIAN 576630 0.9247 55 SPEARFISH 26233 0.0421 13 SPEARFISH/CHARLES 325762 0.5224 106 SPEARFISH/MADISON 51303 0.0823 38 STONEWALL 375882 0.6027 50 TYLER 291897 0.4681 41 TYLER A 28729 0.0461 4 WINNIPEG/DEADWOOD 1382 0.0022 2 WINNIPEGOSIS 259941 0.4168 20 2008 Total 62361889 100.0000 4331

# 2009 North Dakota Oil Production by Formation

Formation Barrels of Oil Produced Percent Wells BAKKEN 49293744 62.1969 1341 BAKKEN/THREE FORKS 187876 0.2371 3 BIRDBEAR 697331 0.8799 108 CAMBRO/ORDOVICIAN 10498 0.0132 2 DAWSON BAY 20409 0.0258 3 DEVONIAN 772731 0.9750 60 DUPEROW 620348 0.7827 110 GUNTON 2812 0.0035 1 HEATH 199475 0.2517 39 LODGEPOLE 1005559 1.2688 29 MADISON 9705426 12.2459 2097 MIDALE/NESSON 241165 0.3043 36 MISSION CANYON 1009 0.0013 1 ORDOVICIAN 394113 0.4973 51 RATCLIFFE 9828 0.0124 4 RED RIVER 1539682 1.9427 187 RED RIVER B 12514922 15.7908 287 RIVAL 12445 0.0157 3 SANISH 325661 0.4109 18 SILURIAN 509184 0.6425 54 SPEARFISH 22251 0.0281 13 SPEARFISH/CHARLES 318110 0.4014 99 SPEARFISH/MADISON 48831 0.0616 35 STONEWALL 345614 0.4361 46 THREE FORKS 34 0.0000 1 TYLER 221279 0.2792 40 TYLER A 25939 0.0327 3 WINNIPEG/DEADWOOD 1210 0.0015 2 WINNIPEGOSIS 206815 0.2610 20 2009 Total 79254301 100.0000 4693

# 2010 North Dakota Oil Production by Formation

Formation Barrels of Oil Produced Percent Wells BAKKEN 85075338 75.6016 2116 BAKKEN/THREE FORKS 464976 0.4132 7 BIRDBEAR 578506 0.5141 104 CAMBRO/ORDOVICIAN 11121 0.0099 2 DAWSON BAY 24733 0.0220 3 DEVONIAN 695137 0.6177 56 DUPEROW 609390 0.5415 112 GUNTON 1545 0.0014 1 HEATH 210490 0.1871 38 LODGEPOLE 1043054 0.9269 31 MADISON 9425079 8.3755 2091 MIDALE/NESSON 192347 0.1709 39 MISSION CANYON 1446 0.0013 1 ORDOVICIAN 319055 0.2835 52 RATCLIFFE 9101 0.0081 4 RED RIVER 1373100 1.2202 184 RED RIVER B 10503996 9.3343 274 RIVAL 10835 0.0096 3 SANISH 420594 0.3738 22 SILURIAN 453993 0.4034 47 SPEARFISH 44819 0.0398 20 SPEARFISH/CHARLES 286728 0.2548 97 SPEARFISH/MADISON 75943 0.0675 39 STONEWALL 305323 0.2713 47 TYLER 196859 0.1749 40 TYLER A 26504 0.0236 4 WINNIPEG/DEADWOOD 1270 0.0011 2 WINNIPEGOSIS 169782 0.1509 19 2010 Total 112531064 100.0000 5455

# 2011 North Dakota Oil Production by Formation

Formation Barrels of Oil Produced Percent Wells BAKKEN 126178063 82.8206 3345 BAKKEN/THREE FORKS 563459 0.3698 9 BIRDBEAR 477549 0.3135 102 CAMBRO/ORDOVICIAN 9583 0.0063 2 DAWSON BAY 11684 0.0077 3 DEVONIAN 594210 0.3900 55 DUPEROW 518808 0.3405 112 GUNTON 486 0.0003 2 HEATH 182822 0.1200 38 LODGEPOLE 937928 0.6156 34 MADISON 8329249 5.4671 2051 MIDALE/NESSON 165525 0.1086 42 MISSION CANYON 1091 0.0007 1 ORDOVICIAN 349328 0.2293 50 RATCLIFFE 8181 0.0054 4 RED RIVER 1381984 0.9071 183 RED RIVER B 9244774 6.0681 272 SANISH 1983500 1.3019 44 SILURIAN 394416 0.2589 48 SPEARFISH 82218 0.0540 26 SPEARFISH/CHARLES 248844 0.1633 97 SPEARFISH/MADISON 58399 0.0383 38 STONEWALL 257372 0.1689 44 STONY MOUNTAIN 92 0.0001 1 THREE FORKS 22610 0.0148 1 TYLER 186099 0.1222 37 TYLER A 21873 0.0144 2 WINNIPEG/DEADWOOD 1360 0.0009 2 WINNIPEGOSIS 139589 0.0916 17 2011 Total 152351096 100.0000 6662FORMATION BARRELS OIL PRODUCED PERCENT WELLS BAKKEN 215,490,552 88.94 5,128 BAKKEN/THREE FORKS 735,568 0.30 14 BIRDBEAR 439,135 0.18 99 CAMBRO/ORDOVICIAN 8,644 0.00 2 DAWSON BAY 22,730 0.01 3 DEADWOOD 55 0.00 1 DEVONIAN 552,696 0.23 53 DUPEROW 490,928 0.20 109 GUNTON 1,136 0.00 1 HEATH 192,629 0.08 36 LODGEPOLE 871,969 0.36 32 MADISON 8,269,009 3.41 2,052 MIDALE/NESSON 148,594 0.06 42 MISSION CANYON 1,034 0.00 1 ORDOVICIAN 356,494 0.15 50 RATCLIFFE 8,177 0.00 4 RED RIVER 1,607,807 0.66 186 RED RIVER B 8,361,050 3.45 270 SANISH 3,054,991 1.26 52 SILURIAN 341,493 0.14 44 SPEARFISH 349,867 0.14 45 SPEARFISH/CHARLES 263,646 0.11 97 SPEARFISH/MADISON 64,967 0.03 43 STONEWALL 238,893 0.10 44 STONY MOUNTAIN 94 0.00 1 THREE FORKS 78,483 0.03 2 TYLER 178,973 0.07 37 TYLER A 24,752 0.01 3 WINNIPEG/DEADWOOD 1,396 0.00 2 WINNIPEGOSIS 120,292 0.05 17 2012 TOTALS 242,276,054 100.00 8,470 

## 2012 NORTH DAKOTA OIL PRODUCTION BY FORMATION

XVFORMATION BARRELS OIL PRODUCED PERCENT WELLS BAKKEN 284,554,268 91.20 7070 BAKKEN/THREE FORKS 1,631,693 0.52 26 BIRDBEAR 403,967 0.13 96 CAMBRO/ORDOVICIAN 7,316 0.00 2 DAWSON BAY 14,097 0.00 3 DEADWOOD 10,009 0.00 1 DEVONIAN 516,040 0.17 53 DUPEROW 490,766 0.16 107 GUNTON 9,258 0.00 2 HEATH 176,143 0.06 35 LODGEPOLE 778,883 0.25 30 MADISON 7,631,719 2.45 1980 MIDALE/NESSON 128,290 0.04 42 MISSION CANYON 818 0.00 1 ORDOVICIAN 328,822 0.11 48 RATCLIFFE 7,725 0.00 4 RED RIVER 1,810,355 0.58 193 RED RIVER B 7,712,116 2.47 271 SANISH 3,860,717 1.24 76 SILURIAN 238,327 0.08 43 SPEARFISH 844,916 0.27 81 SPEARFISH/CHARLES 257,430 0.08 97 SPEARFISH/MADISON 141,866 0.05 43 STONEWALL 212,389 0.07 40 THREE FORKS 42,462 0.01 2 TYLER 176,295 0.06 34 TYLER A 22,788 0.01 3 WINNIPEG 4,180 0.00 1 WINNIPEG/DEADWOOD 1,724 0.00 2 WINNIPEGOSIS 122,573 0.04 15 2013 TOTALS 312,015,379 100.00 10,401 

## 2013 NORTH DAKOTA OIL PRODUCTION BY FORMATION

XVFORMATION BARRELS OIL PRODUCED PERCENT WELLS BAKKEN 361,654,835 91.71 9173 BAKKEN/THREE FORKS 3,477,315 0.88 37 BIRDBEAR 387,409 0.10 98 CAMBRO/ORDOVICIAN 6,009 0.00 2 DAWSON BAY 8,102 0.00 2 DEVONIAN 427,229 0.11 55 DUPEROW 395,970 0.10 105 GUNTON 12,387 0.00 2 HEATH 161,026 0.04 34 LODGEPOLE 697,278 0.18 33 MADISON 7,294,221 1.85 1953 MIDALE/NESSON 107,377 0.03 42 MISSION CANYON 73 0.00 1 ORDOVICIAN 300,773 0.08 46 RATCLIFFE 8,471 0.00 4 RED RIVER 1,683,219 0.43 198 RED RIVER B 7,303,872 1.85 273 SANISH 8,155,254 2.07 124 SILURIAN 233,918 0.06 39 SPEARFISH 1,045,546 0.27 114 SPEARFISH/CHARLES 310,016 0.08 119 SPEARFISH/MADISON 173,326 0.04 49 STONEWALL 163,492 0.04 39 THREE FORKS 29,432 0.01 2 TYLER 163,939 0.04 37 TYLER A 27,447 0.01 3 WINNIPEG 5,422 0.00 1 WINNIPEG/DEADWOOD 2,579 0.00 3 WINNIPEGOSIS 97,426 0.02 14 2014 TOTALS 394,333,363 100.00 12,602 

## 2014 NORTH DAKOTA OIL PRODUCTION BY FORMATION

XV