What primary term is

Primary term is the first half of the habendum on an oil and gas lease: a stated number of years they can keep the lease without a well that counts as production. Three years and five years show up often. The printed years are their draft, not a statute. After that clock, the lease typically continues only “as long as” oil or gas is produced — HBP / contiguous property — unless they bought more time.

Cover sheets skip this. A fat Bonus on a long primary term is how they sit on your minerals without drilling. This page is not legal advice. Mineral Vertex buys oil and gas minerals and matches owners with buyers. We do not promise to beat every letter.

Copies of the printed lease — habendum, rentals or paid-up, and any option to extend — are enough to start. Do not notarize their form because “it’s only three years.” Without a Pugh, one well in year four can hold acres and depths you thought would come back.

The clock

Primary term starts when the lease is effective (often on execution, sometimes on a stated date). It is not the same as the landman’s “we’ll be in the county this season.” Operations clauses can keep the lease alive past the anniversary if they are drilling or completing in good faith as the form defines it. Continuous drilling after a first well can also bridge into HBP. Read those next to the years, not instead of them.

How they keep it without a well

• Delay rentals — a yearly payment during primary term so they do not have to drill yet. Older forms still use this.
• Paid-up — the Bonus (or extra bonus) buys those rentals up front. No annual check does not mean the lease died.
• Extension / option — more years for another bonus. That is extra consideration, not a courtesy.
• Shut-ins — after a well exists, shut-in royalty can substitute for production. That is usually a secondary-term tool, not a substitute for the primary-term clock itself.

What happens when primary term ends

If nothing the lease treats as production (or operations, or a valid extension) is in place, the lease expires and the right to drill comes back to the mineral owner — unless a top lease is waiting. If a well or a pooled unit well is producing, HBP starts. A Pugh / depth clause, if it works, often fires at the end of primary term and drops unpooled acres or undeveloped depths. Without a Pugh, Pooling / unit plus HBP can hold the whole caption. A mineral deed during primary term still sells the estate subject to that lease.

What to read twice on primary term

• The years — and the effective date. Count from the paper, not from the letter.
• Paid-up vs rentals — whether they owe a yearly payment to sit.
• Option to extend — how long, how much bonus, who must notice whom.
• Operations / continuous drilling — what “commenced” means in the last 30 days of the term.
• Pugh timing — whether undeveloped acres drop at the end of primary term or only later.
• The legal — match it on the oil and gas map.

Use how to respond if you need a week, then send Primary term here — meaning the lease (and any deed in the packet) — so we can try an offer, a buyer match, or a counter.