Estimated ultimate recovery (EUR) is the total quantity of oil and gas a well or field is expected to produce over its entire productive life — from first production through abandonment — combining what it has already produced with what it is forecast to produce, and it is a core figure behind reserve estimates, type curves, and mineral valuation.
Estimated ultimate recovery answers a simple question: how much will this well produce in total, ever? It is the sum of the oil and gas the well has already produced plus the amount it is forecast to produce before it is plugged. Expressed in barrels, MCF, or BOE, EUR is the headline number for a well's lifetime output.
Because it spans the whole life, EUR is an estimate that firms up over time: early on it rests heavily on forecasting; late in life, most of the EUR has actually been produced and little forecasting remains.
Analysts estimate EUR mainly through decline curve analysis — projecting a well's production down its decline to an economic limit and adding the past production — supplemented by type curves for wells with little history and by reservoir modeling. The economic limit (the point where the well no longer pays to operate) sets where the forecast stops, so prices and costs influence EUR just as they do reserves.
For undrilled locations, an area type curve provides the EUR estimate that drilling and valuation decisions lean on.
EUR and reserves are related but not the same. EUR is total lifetime recovery — past plus future. Reserves are only the remaining quantity expected to be recovered from a point forward. So a well that has already produced much of its EUR has a large EUR but small remaining reserves.
For a mineral owner, that distinction matters: your future royalties come from the remaining production (reserves), while EUR describes the well's total capacity. A high-EUR well deep in its decline may have little left to pay you.
EUR is a useful way to gauge how prolific the wells on your acreage are and how good a play is — bigger EURs mean more total production and, all else equal, more value. But when judging your own interest, pair EUR with how much has already been produced, because value tracks what is left. A modern shale well may have a large EUR yet decline fast, so timing matters.
Buckhead Energy uses realistic EUR estimates and focuses on remaining production when valuing minerals. This page is educational information, not financial advice.
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Educational information only — not legal, tax, or investment advice. Consult a qualified attorney, CPA, or landman about your specific situation.
The total quantity of oil and gas a well or field is expected to produce over its entire life — from first production to abandonment — combining what it has already produced with what it is forecast to produce. It is a core figure behind reserves, type curves, and valuation.
Mainly by decline curve analysis — projecting production down its decline to an economic limit and adding past production — plus type curves for wells with little history and reservoir modeling. For undrilled locations, an area type curve provides the EUR estimate.
EUR is total lifetime recovery, past plus future. Reserves are only the remaining quantity expected from a point forward. A well that has already produced much of its EUR has a large EUR but small remaining reserves — and your future royalties come from what is left.
Bigger EURs generally mean more total production and more value, but for your own interest EUR must be paired with how much has already been produced, because value tracks what remains. A high-EUR well deep in its decline may have little left to pay.
No — it is an estimate that firms up over time. Early in a well's life it rests heavily on forecasting; late in life most of the EUR has actually been produced, so little forecasting remains and the number is more certain.
Yes — Buckhead Energy is a direct buyer of mineral, royalty, NPRI, and ORRI interests across the United States, producing or non-producing. Buckhead Energy makes a free written offer, pays the title and closing costs, and charges no broker commission.
Buckhead Energy buys mineral and royalty interests across all 50 states and has completed acquisitions in 33 states. Buckhead Energy is a direct buyer, not a broker — we purchase mineral and royalty interests with our own capital. Buckhead Energy has been buying mineral and royalty interests since 2006. Buckhead Energy holds an A+ rating with the Better Business Bureau.
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