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Montgomery County, IL oil and gas wells

1,364 wells: 0 active, 937 plugged, run by 384 operators.

Figures from the Illinois State Geological Survey, updated 2026-10-17.

Top operators in Montgomery

OperatorActiveWells here
Granholm & Assoc.0451
Illinois Power Co.036
Hardt, Edwin E.031
Sun Production Co (Sun Oil)020
Gulf018
Reed, O. A.017
Moody, Roger016
Keyrock Energy LLC012
National Associated Petroleum Co.011
White Edgar011
Holmes, W. Ralph, Etal09
Phillips Petroleum, Co.09
Stribling, W. C.09
Keyrock Energy, LLC08
Magnolia Petroleum Company08
Alco Oil & Gas Corp.07
Allen, Nelson07
Calvert Drilling, Inc.07
Division Of Waterways07
MP Gas & Oil Exploration07
Taurus Oil Co., Inc.07
Bassett, Clyde06
Benoist, L. L.06
Frank's Petroleum Exploration06
IL State Geological Survey06

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Gradruck 1 12-135-01401Plugged Dry holeAubrey Tennant Oil
Graham 1 12-135-00585Plugged Dry holeDavis Elza
Graham 1 12-135-01093Plugged Dry holeSmith Drlg. Co., Inc.
Graham, Earl 1 12-135-00471Plugged Dry holeDavis Elza
Graham, Earl C. 1 12-135-01385Plugged Dry holeTucker George
Granholm & Assoc. 148 12-135-00398Plugged OtherGranholm & Assoc.
Granholm & Assoc. 134 12-135-00400Plugged OtherGranholm & Assoc.
Granholm & Assoc. 130 12-135-00403Plugged OtherGranholm & Assoc.
Granholm & Assoc. 91 12-135-00422Plugged OtherGranholm & Assoc.
Granholm & Assoc. 92 12-135-00423Plugged OtherGranholm & Assoc.
Granholm & Assoc. 94 12-135-00425Plugged OtherGranholm & Assoc.
Granholm & Assoc. 95 12-135-00426Plugged OtherGranholm & Assoc.
Granholm & Assoc. 96 12-135-00427Plugged OtherGranholm & Assoc.
Granholm & Assoc. 159 12-135-00438Plugged OtherGranholm & Assoc.
Granholm & Assoc. 160 12-135-00439Plugged OtherGranholm & Assoc.
Granholm & Assoc. 161 12-135-00440Plugged OtherGranholm & Assoc.
Granholm & Assoc. 162 12-135-00441Plugged OtherGranholm & Assoc.
Granholm & Assoc. 265 12-135-00517Plugged Dry holeGranholm & Assoc.
Granholm & Assoc. 230 12-135-00570Plugged OtherGranholm & Assoc.
Granholm & Assoc. 228 12-135-00571Plugged OtherGranholm & Assoc.
Granholm & Assoc. 229 12-135-00572Plugged OtherGranholm & Assoc.
Granholm & Assoc. 181 12-135-00573Plugged OtherGranholm & Assoc.
Granholm & Assoc. 216 12-135-00574Plugged OtherGranholm & Assoc.
Granholm & Assoc. 224 12-135-00575Plugged OtherGranholm & Assoc.
Granholm & Assoc. 225 12-135-00576Plugged OtherGranholm & Assoc.
Granholm & Assoc. 226 12-135-00577Plugged OtherGranholm & Assoc.
Granholm & Assoc. 227 12-135-00578Plugged OtherGranholm & Assoc.
Granholm & Assoc. 179 12-135-00579Plugged OtherGranholm & Assoc.
Granholm & Assoc. 180 12-135-00580Plugged OtherGranholm & Assoc.
Granholm & Assoc. 182 12-135-00581Plugged OtherGranholm & Assoc.
Granholm & Assoc. 186 12-135-00582Plugged OtherGranholm & Assoc.
Granholm & Assoc. 206 12-135-00583Plugged OtherGranholm & Assoc.
Granholm & Assoc. 300 12-135-00608Plugged OtherGranholm & Assoc.
Granholm & Assoc. 301 12-135-00609Plugged OtherGranholm & Assoc.
Granholm & Assoc. 302 12-135-00610Plugged OtherGranholm & Assoc.
Granholm & Assoc. 303 12-135-00611Plugged OtherGranholm & Assoc.
Granholm & Assoc. 304 12-135-00612Plugged OtherGranholm & Assoc.
Granholm & Assoc. 305 12-135-00613Plugged OtherGranholm & Assoc.
Granholm & Assoc. 306 12-135-00614Plugged OtherGranholm & Assoc.
Granholm & Assoc. 307 12-135-00615Plugged OtherGranholm & Assoc.
Granholm & Assoc. 308 12-135-00616Plugged OtherGranholm & Assoc.
Granholm & Assoc. 309 12-135-00617Plugged OtherGranholm & Assoc.
Granholm & Assoc. 310 12-135-00618Plugged OtherGranholm & Assoc.
Granholm & Assoc. 311 12-135-00619Plugged OtherGranholm & Assoc.
Granholm & Assoc. 312 12-135-00620Plugged OtherGranholm & Assoc.
Granholm & Assoc. 313 12-135-00621Plugged OtherGranholm & Assoc.
Granholm & Assoc. 314 12-135-00622Plugged OtherGranholm & Assoc.
Granholm & Assoc. 315 12-135-00623Plugged OtherGranholm & Assoc.
Granholm & Assoc. 316 12-135-00624Plugged OtherGranholm & Assoc.
Granholm & Assoc. 317 12-135-00625Plugged OtherGranholm & Assoc.
Granholm & Assoc. 318 12-135-00626Plugged OtherGranholm & Assoc.
Granholm & Assoc. 319 12-135-00627Plugged OtherGranholm & Assoc.
Granholm & Assoc. 320 12-135-00628Plugged OtherGranholm & Assoc.
Granholm & Assoc. 325 12-135-00629Plugged OtherGranholm & Assoc.
Granholm & Assoc. 326 12-135-00630Plugged OtherGranholm & Assoc.
Granholm & Assoc. 327 12-135-00631Plugged OtherGranholm & Assoc.
Granholm & Assoc. 328 12-135-00632Plugged OtherGranholm & Assoc.
Granholm & Assoc. 329 12-135-00633Plugged OtherGranholm & Assoc.
Granholm & Assoc. 330 12-135-00634Plugged OtherGranholm & Assoc.
Granholm & Assoc. 331 12-135-00635Plugged OtherGranholm & Assoc.
Granholm & Assoc. 332 12-135-00636Plugged OtherGranholm & Assoc.
Granholm & Assoc. 334 12-135-00637Plugged OtherGranholm & Assoc.
Granholm & Assoc. 335 12-135-00638Plugged OtherGranholm & Assoc.
Granholm & Assoc. 333 12-135-00639Plugged OtherGranholm & Assoc.
Granholm & Assoc. 346 12-135-00672Plugged OtherGranholm & Assoc.
Granholm & Assoc. 347 12-135-00673Plugged OtherGranholm & Assoc.
Granholm & Assoc. 348 12-135-00674Plugged OtherGranholm & Assoc.
Granholm & Assoc. 349 12-135-00675Plugged OtherGranholm & Assoc.
Granholm & Assoc. 396 12-135-00676Plugged OtherGranholm & Assoc.
Granholm & Assoc. 406 12-135-00677Plugged OtherGranholm & Assoc.
Granholm & Assoc. 407 12-135-00678Plugged OtherGranholm & Assoc.
Granholm & Assoc. 408 12-135-00679Plugged OtherGranholm & Assoc.
Granholm & Assoc. 409 12-135-00680Plugged OtherGranholm & Assoc.
Granholm & Assoc. 410 12-135-00681Plugged OtherGranholm & Assoc.
Granholm & Assoc. 395 12-135-00682Plugged OtherGranholm & Assoc.
Granholm & Assoc. 397 12-135-00683Plugged OtherGranholm & Assoc.
Granholm & Assoc. 398 12-135-00684Plugged OtherGranholm & Assoc.
Granholm & Assoc. 399 12-135-00685Plugged OtherGranholm & Assoc.
Granholm & Assoc. 400 12-135-00686Plugged OtherGranholm & Assoc.
Granholm & Assoc. 401 12-135-00687Plugged OtherGranholm & Assoc.
Granholm & Assoc. 402 12-135-00688Plugged OtherGranholm & Assoc.
Granholm & Assoc. 403 12-135-00689Plugged OtherGranholm & Assoc.
Granholm & Assoc. 404 12-135-00690Plugged OtherGranholm & Assoc.
Granholm & Assoc. 405 12-135-00691Plugged OtherGranholm & Assoc.
Granholm & Assoc. 350 12-135-00692Plugged OtherGranholm & Assoc.
Granholm & Assoc. 351 12-135-00693Plugged OtherGranholm & Assoc.
Granholm & Assoc. 352 12-135-00694Plugged OtherGranholm & Assoc.
Granholm & Assoc. 353 12-135-00695Plugged OtherGranholm & Assoc.
Granholm & Assoc. 354 12-135-00696Plugged OtherGranholm & Assoc.
Granholm & Assoc. 355 12-135-00697Plugged OtherGranholm & Assoc.
Granholm & Assoc. 356 12-135-00698Plugged OtherGranholm & Assoc.
Granholm & Assoc. 357 12-135-00699Plugged OtherGranholm & Assoc.
Granholm & Assoc. 358 12-135-00700Plugged OtherGranholm & Assoc.
Granholm & Assoc. 359 12-135-00701Plugged OtherGranholm & Assoc.
Granholm & Assoc. 336 12-135-00709Plugged OtherGranholm & Assoc.
Granholm & Assoc. 337 12-135-00710Plugged OtherGranholm & Assoc.
Granholm & Assoc. 338 12-135-00711Plugged OtherGranholm & Assoc.
Granholm & Assoc. 339 12-135-00712Plugged OtherGranholm & Assoc.
Granholm & Assoc. 341 12-135-00713Plugged OtherGranholm & Assoc.
Granholm & Assoc. 342 12-135-00714Plugged OtherGranholm & Assoc.

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