Erle P. Halliburton started his oil-well cementing company in Duncan in 1919, and more than a century later the city still runs on the industry he built. Car insurance here reflects that history more than most Oklahoma towns its size, because Duncan's economy never really diversified away from oilfield services.

Halliburton keeps a manufacturing center, a technology center, and a second plant running in Duncan today, and it remains one of Stephens County's largest employers. That single-industry backbone shows up in three places insurers actually look: household income, vehicle theft data, and the freight traffic sharing local highways.

A Company Town, Still

Duncan's population sits just over 22,500, and a meaningful share of that workforce clocks in at one of Halliburton's Duncan campuses or a supplier feeding into it. When oil prices swing, Duncan feels it faster and harder than a city with a more mixed economy — hiring booms in good years, layoffs and hiring freezes in down years.

That cyclicality matters for insurance because it shapes what people drive. Newer, financed trucks show up in Duncan driveways during upswings; older, paid-off sedans and trucks stick around longer during downturns. Neither pattern changes Oklahoma's legal minimum, but it does change how much coverage beyond that minimum actually makes financial sense for a given household.

Higher Crime Ranking, Lower Car Theft

Duncan's overall crime rate runs higher than roughly 85% of Oklahoma cities and towns, a number that tends to alarm anyone comparing cities side by side. But that ranking is driven mostly by property crime in general — burglary, theft from vehicles, that category of offense — not motor vehicle theft specifically.

Duncan's actual car theft rate is about 77 per 100,000 residents, well under the national rate of 284. Insurers price comprehensive coverage, the part of a policy that pays out if your car is stolen, primarily off that narrower number. The result is a Duncan quote that can look better on the theft line than the city's broader crime reputation would suggest.

US-81 and US-70 both cut through Duncan, and both carry a mix of daily commuters and heavy trucks moving equipment to and from wells around Stephens County. That truck traffic is a collision-risk factor in its own right — insurers track accident frequency by corridor, and a highway that mixes passenger cars with oilfield service trucks tends to post more of the merging and turning incidents that drive up collision claims.

Oklahoma's Legal Floor, Company Town or Not

Every Duncan driver still needs at least 25/50/25 liability coverage: $25,000 in bodily injury per person, $50,000 per accident, and $25,000 for property damage. Oklahoma is an at-fault state, so that coverage pays for damage you cause to someone else — it won't repair or replace your own vehicle after a wreck. Insurers also include uninsured motorist coverage by default statewide, which is worth keeping given that roughly 13.4% of Oklahoma drivers still carry no insurance at all.

Duncan sits inside Tornado Alley too, and spring hail is a routine risk here. Comprehensive is the only coverage that pays for hail dents or wind damage to a parked car, and with Duncan's theft rate already keeping that coverage cheap, there's little reason to drop it to trim a few dollars off a monthly bill.

What Duncan Drivers Should Actually Do

  • Confirm your 25/50/25 minimum: it's the legal floor for every driver in Duncan and the rest of Oklahoma.
  • Keep comprehensive coverage: Duncan's low vehicle theft rate keeps it affordable, and Tornado Alley hail makes it worth having.
  • Don't waive uninsured motorist coverage: about 13.4% of Oklahoma drivers carry none, and US-81's commuter mix only adds exposure.
  • Re-quote if your income or vehicle changes with the oil cycle: a newer financed truck bought during a hiring boom needs more than the state minimum protecting it.

For a closer look at what liability-only coverage leaves exposed in a wreck, see our minimum vs. full coverage guide. If a highway collision does happen on US-81, our claims guide walks through what to do next.