Day Rate, Per Diem, or Salary? Getting Oilfield Pay Structures Right Without an Overtime Lawsuit
If you run a field service or oilfield company in Texas or along the Gulf Coast, chances are you're paying your crews some combination of a day rate, a salary, per diem, and a bonus here and there for a job well done. It's how the industry has always worked. It's also how a lot of companies end up on the wrong end of a Department of Labor audit or a back-pay lawsuit without ever meaning to cut corners.
I've run payroll for oilfield and field service crews. I've closed out compliance audits. And I can tell you the pattern that gets companies in trouble almost never starts with someone trying to cheat their workers. It starts with a pay structure that made sense five years ago, got copied from company to company, and never got checked against what the Fair Labor Standards Act (FLSA) actually requires.
Here's what you need to know, in plain terms.
A day rate does not automatically mean "no overtime"
This is the single most common misunderstanding I see. A lot of owners assume that if someone is on a day rate — say, $500 a day regardless of hours worked — that flat rate covers everything, including the 14-hour days that come with rig moves, callouts, and hitches. It doesn't. Under the FLSA, covered nonexempt employees are entitled to overtime pay for any hours worked over 40 in a workweek, at not less than one-and-a-half times their "regular rate" of pay — and the workweek is a fixed, recurring 168-hour period, not something you can average out over two weeks to smooth out a heavy stretch (DOL Fact Sheet #23). A day rate has to be converted into an hourly regular rate for the week, and overtime has to be calculated and paid on top of it, unless the worker is properly classified as exempt.
"Salaried" and "exempt" are not the same thing
This trips up a lot of oilfield companies with working supervisors, consultants, and highly compensated field leads. Paying someone a fixed salary does not, by itself, make them exempt from overtime. Exemption depends on a duties test and a salary-level test — titles like "manager," "supervisor," or "consultant" don't settle the question on their own (DOL Fact Sheet #17G, DOL Fact Sheet #17A). The white-collar exemptions generally don't apply to people doing manual labor with their hands, physical skill, and physical energy — which describes a lot of field and production roles regardless of how they're paid.
This issue got a lot more attention after the Supreme Court's 2023 decision in Helix Energy Solutions Group, Inc. v. Hewitt, which involved a highly paid offshore toolpusher earning day rates that could total well over six figures a year, working roughly 84 hours a week. The Court ruled that daily-rate workers only satisfy the "salary basis" test if very specific conditions are met — including a weekly guarantee that reasonably approximates what they usually earn (Justia). Translation: paying someone well does not exempt them from overtime protections if the pay structure itself doesn't meet the technical requirements. Income level and exemption status are two different questions.
Bonuses usually count toward the "regular rate" — even the ones you don't think of as pay
Safety bonuses, job-completion bonuses, attendance bonuses, production bonuses, callout bonuses — most of these are "nondiscretionary," meaning they were promised or expected in advance based on a formula, hitting a target, or showing up. Nondiscretionary bonuses generally have to be folded into the regular rate used to calculate overtime, which changes the math on every overtime hour worked that period (DOL Fact Sheet #56C). If your payroll process calculates overtime before bonuses are applied, you may be underpaying overtime every single pay period without realizing it.
Per diem is usually fine — until it isn't
Per diem and travel reimbursements can generally be excluded from the regular rate calculation, as long as they reasonably approximate the actual expense the worker incurred for things like lodging or meals while away from home (29 CFR 778.217). Where this goes wrong is when per diem starts looking less like a reimbursement and more like disguised wages — a flat amount paid regardless of actual travel status, or an amount that gets reduced if someone shows up late or a job runs short. That kind of structure raises the question of whether it's really a reimbursement at all, or extra pay that should have been included in overtime calculations from the start.
What this means for your business, practically
You don't need to rebuild your entire pay structure this week. What you do need is a clear-eyed look at where your actual risk sits. In my experience, that's almost always one of four combinations: day-rate field employees working long hitches, salaried supervisors whose day-to-day duties look more like the crew than management, bonus-heavy roles where the bonus isn't factored into overtime math, and travel-heavy crews where per diem doesn't clearly map to real expenses.
Start there. Pull the last four to eight pay periods for those roles and reconcile actual hours worked against what was paid, including how bonuses and per diem were treated. That single exercise will tell you more about your real exposure than any policy rewrite.
If that reconciliation turns up gaps — and for most companies that haven't looked at this in a while, it does — that's the moment to bring in fractional HR support before it becomes a Department of Labor complaint or a wage-and-hour lawsuit. Fixing pay structure and documentation on your own timeline is a very different experience than fixing it under a government auditor's timeline.
This isn't about adding corporate bureaucracy to a business that runs on getting the job done. It's about making sure the way you already pay your people can hold up if someone ever asks you to prove it.
This article is general information, not legal advice. For a specific pay structure, confirm classification and overtime treatment with a qualified employment attorney or your HR advisor.
Sources: DOL Fact Sheet #23, DOL Fact Sheet #17G, DOL Fact Sheet #17A, DOL Fact Sheet #56C, Helix v. Hewitt, 29 CFR 778.217.