# Joint Interest Billing (JIB)

**Source:** Buckhead Energy Oil & Gas Encyclopedia (https://www.buckheadenergy.com/learn) — canonical: https://www.buckheadenergy.com/joint-interest-billing

A joint interest billing (JIB) is the periodic invoice an operator sends each non-operating working-interest owner for its proportionate share of the costs of drilling and operating a well, under the joint operating agreement.

## The bill that comes with a working interest
When several parties share the working interest in a well, one of them operates it and the others are non-operators. The operator fronts the costs — drilling, completion, equipment, monthly operating expenses — and then bills each non-operator for its share through a joint interest billing. The JIB is essentially an itemized invoice: here is what the well cost this period, and here is your percentage of it.
JIBs are governed by the joint operating agreement (JOA) among the working-interest owners and are typically prepared under standardized COPAS accounting procedures that spell out which costs can be charged and how overhead is handled. They arrive monthly for a producing well and can be much larger during the drilling and completion phase.

## Who gets a JIB — and who never does
This is the sharpest line in mineral economics: working-interest owners pay JIBs; royalty and mineral owners do not. A royalty owner holds a cost-free interest — they receive their share of revenue off the top and bear none of the expense of drilling or operating. A working-interest owner is on the other side of that deal, sharing in the upside but also carrying a proportionate share of the costs.
That difference is exactly why the two interests are valued so differently. A royalty check only goes up or down with production and price; a working interest's net is revenue minus the JIB, so it can swing hard — and during an expensive drilling program, a working interest can be cash-flow negative even while the well is productive.

## What it means if you receive JIBs
If you are getting joint interest billings, you own a working interest, not a royalty — and you carry real obligations. It is worth reading each JIB against the JOA and COPAS terms, watching for charges that do not belong, and understanding that unpaid JIBs can let the operator withhold your revenue or enforce a lien under the operating agreement. People who inherit a working interest are often surprised to receive bills at all.
Working interests can be valuable, but they are a different animal from royalties, and their worth depends on the balance between revenue and cost. When Buckhead Energy looks at a working interest, we model both legs — the revenue and the JIB burden — rather than just the income, so the interest is priced on what it actually nets you.

## Frequently asked questions

**What is a joint interest billing (JIB)?**
It is the invoice an operator sends each non-operating working-interest owner for its share of the costs of drilling and operating a well, under the joint operating agreement. It itemizes the period's costs and your proportionate percentage of them.

**Do mineral or royalty owners get JIBs?**
No. Royalty and mineral owners hold cost-free interests — they receive revenue off the top and bear none of the drilling or operating expense. Only working-interest owners receive joint interest billings and pay their share of costs.

**Why did I get a bill for a well I own an interest in?**
Because you likely own a working interest, not a royalty. Working interests share in the costs as well as the revenue, so the operator bills you for your share through a JIB. This commonly surprises people who inherit a working interest.

**What happens if a JIB goes unpaid?**
Under most joint operating agreements, an operator can withhold the non-paying owner's share of revenue and may have a lien to secure unpaid costs. The specifics are set by the JOA and COPAS procedures governing the well.

## Related terms
- [Working interest](https://www.buckheadenergy.com/working-interest)
- [Oil & gas royalties](https://www.buckheadenergy.com/oil-and-gas-royalties)
- [Net revenue interest](https://www.buckheadenergy.com/net-revenue-interest)
- [Types of mineral interests](https://www.buckheadenergy.com/mineral-interests-types)

_Educational information only, not legal or tax advice. Buckhead Energy is a direct buyer of oil & gas mineral and royalty interests._