Financial research concept

PUD Conversion Capital Cost: Development Spending on Proved Undeveloped Reserves

PUD conversion capital cost is the capital spent to drill and develop proved undeveloped reserves that are transferred to proved developed status.

By Lee BaileyPublished Sep 25, 2026

Research context

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Research date: Sep 25, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context: 18 connected conceptsPart of the reviewed Upstream E&P Economics; issuer definitions remain distinct where disclosed.
Company examples: 1 reviewed companyRelationships reflect supported examples, not a normalized cross-company KPI ranking.

EOG example
Do not confuse it with F&D cost
Source
Part of the Upstream E&P Economics
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PUD conversion capital cost is the development capital associated with converting proved undeveloped reserves into proved developed reserves.

It links reserve-status changes to the cash investment required to make those reserves productive.

EOG example

EOG reported that during 2025 it converted 503 MMBOE of PUDs to proved developed reserves at a total capital cost of $3.483 billion.

A simple derived cost is:

$3.483 billion ÷ 503 MMBOE ≈ $6.92 per converted BOE

That is a Grizzly Bulls calculation based on EOG's disclosed conversion volume and capital cost.

Do not confuse it with F&D cost

Finding and Development Cost can use different capital and reserve-addition definitions.

PUD conversion cost focuses specifically on capital tied to reserves moving from proved undeveloped to proved developed status.

It should not be treated as the producer's full-cycle cost, lifting cost, or corporate breakeven.

Source

EOG Resources 2025 Form 10-K

Part of the Upstream E&P Economics

Connect realized pricing, per-BOE revenue and costs, reserve development, PUD conversion, and standardized reserve value to understand exploration and production economics.

Browse the full operating model in Company Analysis →

Where this concept fits

Reserve renewal, development capital, and standardized valueCurrent relationship
Reserve replacement and finding-and-development cost connect depletion with reserve renewal. Developed and undeveloped reserves show development status, PUD conversion volume and capital cost show execution, and future production and development costs feed the standardized discounted reserve-value calculation.
Finding and Development Cost Reserve Replacement Ratio Future Development Costs Future Production Costs Proved Developed Reserves Proved Undeveloped ReservesPUD Conversion Capital CostCurrent conceptPUD Conversion Volume Standardized Measure Discount Oil & Gas Standardized Measure
Commodity realizations and revenue per BOE
Crude and natural-gas benchmark differentials plus NGL realization relative to WTI show how market and location effects shape pricing, while composite operating revenue per BOE combines those realizations with production mix into one issuer-level revenue measure.
Operating Revenue per BOE Oil Realization Differential Gas Realization Differential NGL Realization % of WTI
Operating cost and per-unit profitability
Lifting cost frames field-level production expense, GP&T cost captures processing and delivery, and DD&A per BOE allocates capitalized asset costs across production. Composite operating income per BOE then shows the resulting issuer-defined per-unit operating profitability after the included cost base.
Lifting Cost Operating Income per BOE Upstream DD&A per BOE GP&T Cost per BOE

See It in Company Research

These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.

EOGOpen operating-model research →17 of 18 reviewed concepts in Upstream E&P EconomicsReserve renewal, development capital, and standardized value10 of 10 bridge concepts supportedContinue through this bridge:Finding and Development Cost Future Development Costs Future Production Costs Oil & Gas Standardized Measure Proved Developed Reserves Proved Undeveloped Reserves PUD Conversion Volume Reserve Replacement Ratio Standardized Measure Discount

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