The one thing your employer is hoping you never find out is this: being hurt at work does not automatically mean workers' comp is your only case.

Say you're driving a company pickup near I-40 and Morgan Road in Oklahoma City during harvest, heading to a job, and a grain truck backs across the road and crushes your door. Your boss tells you, "This is workers' comp, that's it." That's only half true.

You usually cannot sue your employer for a normal on-the-job injury because Oklahoma's exclusive remedy rule sends that claim into workers' comp instead. That means you report the injury, get medical treatment through the comp system, and deal with the Oklahoma Workers' Compensation Commission.

But you can usually sue the other driver or company that caused the crash.

That is the third-party case. It runs separately from workers' comp, and a lot of employers stay quiet about that because they want the whole thing boxed into comp and off their desk.

The basic rules in Oklahoma are:

• Workers' comp: usually your remedy against your employer
• Personal injury lawsuit: usually available against a third party like another driver, trucking company, contractor, or property owner
• Dual-track claims: very common when a worker gets hit by somebody outside the company
• Deadlines: generally 30 days to give notice for a work injury, and generally 2 years to file an Oklahoma injury lawsuit against the third party

If the crash happened in eastern Oklahoma on tribal land, venue and jurisdiction can get messy fast because tribal, state, and federal rules may all matter.

The short version: if your own coworker in a company vehicle caused it, you're usually stuck in comp. If an outside driver, grain hauler, delivery company, or police pursuit suspect caused it, workers' comp is not your only option.