The original well drilled at Indian Creek in the southwestern corner of South Dakota was abandoned at a total depth of 3,874 ft (1,181 m) in the Desmoinesian part of the Minnelusa Formation in 1969. No shows of oil were encountered in this well, Ackman-Schulein & Associates 9-13 Federal-Martin, SW¼ SW¼ Sec. 9, T12S, R1E, and it was abandoned without any drill-stem tests. Log calculations of the Missourian age 2nd Leo sand (3,644 to 3,659 ft; 1,111 to 1,115 m) indicated low-water saturations and the well was reentered in 1978. A drill-stem test of the 2nd Leo in this well gauged 4 MMcf of gas per day. In June 1979, gas and oil were recovered from the 2nd Leo sand at the P & M Petroleum Management 1-9 Statecoach Government well, SE¼ SW¼ Sec. 9, T 2S, R1E. Two oil wells with low gas-oil ratios have been completed in the NW¼ NW¼ and NE¼ NW¼ Sec. 16, T12S, R1E, flowing 200 and 170 bbl of oil per day, respectively. These two wells are currently producing 300 bbl of oil per day and additional development drilling is planned.

The field is located on the southeast flank of the Cottonwood Creek anticline. Subsurface control shows 2° of dip to the southeast. The 2nd Leo is a clean, fine-grained, well-sorted marine or marginal marine sandstone with a maximum known thickness of 18 ft (5.5 m) in the field area. This sand has excellent reservoir quality with a porosity range from 12 to 28% and maximum permeability exceeds 2 darcys.

The gas at Indian Creek field is a rare occurrence of gas associated with 2nd Leo or Minnelusa oil. The gas has a Btu value of 615 and contains 56% nitrogen. The oil is typical undersaturated 2nd Leo or Minnelusa oil.

The Indian Creek field is 15 mi (24 km) east of the nearest oil production which is on the Hartville uplift in Wyoming.

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