I had never developed a strategic business plan, an employee handbook, a hiring process, a minority certification process or an operations manual.
It seems clear from your description that you are selling a service, not a tangible product or a short-term rental. Generally speaking, services are not sales taxable in Colorado and you would not have to have a sales tax license.
To register your business in Colorado, go to www.sos.state.co.us and click on “file a business document.” Then follow the pages from there. However, there is much more paperwork and legal work to starting a business in Colorado than just registering with the Secretary of State and all of the various steps must be performed in order to be legal. The SBDC teaches a three-hour class called Start-Up Basics every two weeks which covers all of these essential procedures. I strongly urge you to sign up for this class as soon as you can.
The procedures for starting an oil and gas equipment company are basically the same as for starting any other kind of company in Colorado. But there is much more to do than I could explain in a short email. I strongly suggest that you sign up for the Start-Up Basics class at the Denver Metro SBDC. This is a three-hour class that is taught every two weeks and covers all of the paperwork and procedures for starting a new business. Just register at www.denversbdc.org/seminars.