That's so odd. I worked on a project involving some Chevron employees once, and we had a strange number of conversations about employer liability should someone injure themselves in the office. It's been years, but your comment reminded me. I thought it was just a quirk of that team, like one of them was just puzzlingly obsessed with it. Maybe the oil industry is just inexplicably plagued by slip-and-fall lawsuits?
It's not just slip-and-fall. Northern Alberta SAGD sites have 20km/h speed limits on premise - if you're a contractor you WILL be fired individually for going over (yes, they measure), and if you're a contracting firm two violations by your people will get your whole company kicked off site.
People crash trucks (the rate at which they crash trucks is kinda impressive tbh), injure hands and backs moving heavy things around, get nasty stuff in their face all the time.
But those incidents cannot easily be characterized, quantifies and evaluated but a bunch of clipboard warrior paper pushers so instead you get a zero tolerance speed limit policy and everyone pats themselves on the back.
People only report it when it's going to be, or already is a big deal, but any injury is supposed to be reported. But yeah, on top of that there is a lot of shit that's real slow to build, RSI for example, or diabetes. Of course with all the rules, anybody that does get injured is going to be painted liable for it, and if you don't get your story straight it's an employment risk to the injured.
Oil is slippery, and humans walking upright fall easily on slippery surfaces :) Check out e.g. HexArmor Rig Lizard gloves for the kinds of specialized safety gear they use to get a good cut-resistant grip on stuff.
It's both the liability issue, but also how safety incentives are set at the highest level. It is not uncommon for senior exec to get bonuses tied to lost time incidents, hazard reporting and other safety metrics, which get cascaded down through the org (In Australia at least).
One office worker spraining an ankle on the stairs and missing a day of work muddies up the KPI's. Reinforcing the safety culture across the whole organisation between the high risk field work and office drones keeps the kpi's green, but its also an easier message to deliver to staff - everyone must play by the same rules.