| Occupational Therapists | ||||
| Child Development Center Region 2 | 672.6610 | 345 S Linden | ||
| Odor Control | ||||
| Bob's Super Clean | 672.6512 | PO Box 145 | ||
| Office & Desk Space Rental Service | ||||
| The Columbus Building | 673.0312 | 23 N Scott | ||
| Office Supplies | ||||
| A & M Service & Supply | 672.2382 | |||
| The Office Copy Shop | 674.8248 | 1003 Coffeen | ||
| Top Office Products Inc | 674.7465 | 124 S Main | ||
| Oil Crude Purchasing | ||||
| Rockwell Petroleum | 675.2300 | 205 W Loucks | ||
| Oil Field Equipment | ||||
| Bighorn Tank & Rental | 673.5002 | 2264 Industrial | ||
| H & H Technical LLC | 672.0743 | 1949 Sugarland | ||
| L & H Industrial Inc | 674.4421 | 1909 Commercial | ||
| Pearl | 672.8090 | 1082 E Brundage | ||
| Oil Field Service | ||||
| B & G Roustabout Service Inc | 673.0266 | 1649 Kroe | ||
| Big Horn Water Wagon | 673.0700 | 56 Paradise Park | ||
| Four Aces Services Inc | 673.5650 | 777 E 8th St | ||
| L & H Industrial Inc | 674.4421 | 1909 Commercial | ||
| Magnum Services | 673.0660 | 5407 Coffeen | ||
| Modern Electric Co | 672.2245 | 2007 Val Vista | ||
| Pearl | 672.8090 | 1082 E Brundage | ||
| SPL Inc | 675.1050 | 861 Frank | ||
| Sanburn Construction Inc | 673.9247 | |||
| Oil & Gas Exploration & Development | ||||
| Baker Energy | 675.6400 | 2615 Aviation | ||
| 76 & 78 Eastriver | 675.1017 | |||
| 76 Eastriver | 675.6073 | |||
| Baker Energy | 673.8800 | 2266 N Main | ||
| Elk Petroleum Inc | 673.0511 | 1043 Coffeen | ||
| Fidelity Exploration & Production Company | 672.7111 | 2585 Heartland | ||
| J M Huber Corp | 673.8800 | 2266 N Main | ||
| Pearl | 672.8090 | 1082 E Brundage | ||
| Powder River Gas LLC | 673.7371 | 847 Coffeen | ||
| Quaneco LLC | 673.1500 | 847 Coffeen | ||
| Rock Well Petroleum | 673.5550 | 2100 W 5th | ||
| Unitsource Inc | 674.1777 | 818 Coffeen | ||
| Wytex Ventures LLC | 674.5855 | 317 W Whitney | ||
| Oil Land Leases | ||||
| Western Land Services Inc | 673.1817 | 1662 S Sheridan | ||
| Oil Well Drilling Contractors | ||||
| Benco Drilling LLC | 751.5723 | PO Box 6728 | ||
| Oil Well Serveyors | ||||
| Prestfeldt Surveying | 672.7415 | 2340 Wetlands | ||
| Oils Lubricating | ||||
| Way Oil Co Inc | 672.2567 | 420 Crook | ||
| Optical Goods Retail | ||||
| Eye Care Of The Big Horns | 674.0444 | 1033 Coffeen | ||
| Sheridan Eyecare Center | 675.2020 | 116 S Main | ||
| Sheridan Optical Goods | 672.5516 | 23 E Grinnell Plaza | ||
| Wyovision Associates Inc | 673.5177 | 1450 Sugarland | ||
| Optical Goods Sales, Service & Repair | ||||
| WyoVision Associates Inc | 673.5177 | 1450 Sugarland | ||
| Opticians | ||||
| Eye Care Of The Big Horns | 674.0444 | 1033 Coffeen | ||
| Optometrists OD | ||||
| Bilyeu Brandi OD | 674.0444 | 1033 Coffeen | ||
| Fehlauer Tim OD | 675.2020 | 116 S Main | ||
| Groshart Eye Clinic PC | 674.7611 | 23 E Grinnell Plaza | ||
| Katschke Joseph V OD | 673.5177 | 1450 Sugarland | ||
| Sheridan Eyecare Center | 673.3256 | |||
| Smith Walton F OD | 673.5177 | 1450 Sugarland | ||
| Ornamental Metal Work | ||||
| Iron Mountain Anvil | 672.6124 | 680 Airfield | ||
| Sheridan Iron Works | 672.2459 | 302 A | ||
| Orthopedic Appliances | ||||
| Hanger Prosthetics & Orotics Of Wyo | 672.0497 | 557 Broadway | ||
| Outboard Motors | ||||
| Big Horn Power Sports LLC | 674.0404 | 1440 Wesco | ||
| Oxygen | ||||
| Community Home Oxygen | 672.9021 | 2240 Coffeen | ||
| Lincare Inc | 672.0073 | 655 Broadway | ||
| Oxygen & Medical Equipment Rental Center Inc | 674.6345 | 36 Paradise | ||
| Valley Welders Supply Inc | 672.3567 | 257 E Brundage |