321 | 1 | 03-21-1977 | 11010 | CHINOOK | DSND | Establishes 80 acre drilling and spacing units for the production of oil and associated hydrocarbons from the "D" Sand underlying certain lands in Arapahoe County. Units to be the N2 and S2 of a quarter section; with permitted well located in the SE and NW of each quarter section; with a tolerance of 200 feet for topographic and surface hazards. |