How to Compare Public Oil and Gas Price Decks Without Mixing Assumptions

Direct answer for mineral owners

Compare two published oil and gas price decks without combining them. Give each source its own column; record publisher, publication date, forecast-completion or effective period, commodity, benchmark, geography, unit, nominal-or-real basis, horizon, stated use case, and retrieval date exactly as disclosed. Mark absent or unclear fields as not stated or unresolved. Stop before creating, normalizing, selecting, or recommending a deck or using it to calculate property value.

Key takeaways for mineral owners

• Keep every source in a separate column and preserve its publication date, effective period, version, and retrieval date.
• Compare commodity, benchmark, geography, unit, nominal-or-real basis, time interval, horizon, and stated use case before comparing displayed values.
• Do not treat a public forecast, spot-price series, reserve-pricing rule, realized price, and property-specific price assumption as interchangeable.
• Write not stated or unresolved when a publication does not disclose a field; do not silently fill, convert, escalate, or normalize it.
• Use the completed matrix to ask neutral follow-up questions, not to choose a forecast or determine mineral-rights value.

Comparison-only boundary. This article explains how to compare the labels and disclosed assumptions in dated public oil and gas price-deck publications. It does not create, extend, convert, normalize, select, validate, or recommend a price deck; forecast commodity prices; calculate present value or mineral-rights value; interpret a reserve report or private instrument; or provide owner-specific engineering, appraisal, investment, legal, or tax guidance. MRX provides educational information and resources only and does not buy mineral rights.

To compare public oil and gas price decks, place each publication in its own source column. Before looking at displayed prices, record the publisher, publication date, forecast-completion or effective period, version, commodity, benchmark, geographic basis, unit, nominal-or-real basis, time interval, horizon, stated use case, source URL, and retrieval date.

Compare only fields that have the same disclosed frame. If a field is absent or unclear, write not stated or unresolved. Do not fill the gap from another publication, convert a unit, extend a horizon, or silently substitute a newer version.

What this comparison does and what it does not do

A public deck comparison is a source-control exercise. It answers a narrow question: are the displayed observations framed the same way?

That is different from the one-variable sensitivity worksheet, which records an output supplied by an existing model while one documented input changes. It is also different from a discount-rate review, a property-level cash-flow forecast, an appraisal, or an offer analysis.

The comparison should not produce a blended price series. It should not decide that one publisher is more accurate, select a “conservative” case, or claim that a public outlook equals the price an owner will realize.

Preserve the publication identity first

The EIA Short-Term Energy Outlook is a useful example of why source identity matters. Its live page identifies a release date and forecast-completion date and provides access to current tables, data, and prior releases. A later release can change the displayed outlook while keeping a similar page title.

For each source, preserve:

• exact publication title and publisher;
• publication, release, or issue date;
• forecast-completion, data-through, effective, or reporting period when stated;
• edition, vintage, version, table, and page or section;
• stable URL or saved source file;
• access or retrieval date; and
• whether the source is a forecast, historical series, reserve-reporting method, scenario, survey, or another stated publication type.

Do not overwrite the publication date with the retrieval date. Do not cite only a landing page when the compared field came from a dated table or PDF; retain the table or file location too.

Build a field-by-field matrix

Use one row per comparison field and one column per source. A practical matrix looks like this:

Comparison field	Source A	Source B	Review note
Publication identity	Exact title, publisher, version	Exact title, publisher, version	Same source type or different?
Dates	Release, completion, effective, and retrieval dates	Release, completion, effective, and retrieval dates	Do not collapse different dates
Commodity	Oil, natural gas, NGL, or another label exactly as stated	Exact stated commodity	Do not combine commodities
Benchmark or series	Exact named benchmark or source series	Exact named benchmark or source series	not stated if absent
Geographic basis	Country, region, hub, basin, delivery point, or other stated basis	Exact stated basis	Do not infer property location
Unit	Exact currency and physical unit	Exact currency and physical unit	Do not convert inside this matrix
Dollar basis	Nominal, real, constant-dollar base period, or not stated	Exact stated basis	Keep base periods visible
Time interval	Daily, monthly, quarterly, annual, average, or another label	Exact stated interval	Do not compare mismatched intervals as identical
Horizon	First and last displayed periods	First and last displayed periods	Do not extend missing periods
Stated use case	Publisher’s stated purpose	Publisher’s stated purpose	Keep forecast and disclosure rules separate
Assumptions and caveats	Exact section or concise sourced paraphrase	Exact section or concise sourced paraphrase	Preserve revision and uncertainty language

The review-note column records only whether the frames match, conflict, or remain unresolved. It does not rate the sources or choose a winner.

Keep commodity, benchmark, and geography separate

“Oil” and “natural gas” are not complete comparison labels. Record the commodity and the named benchmark or series separately. Then record the location or geographic basis stated by the publisher.

A public benchmark is not automatically a property’s realized price. Location, quality, timing, contract terms, transportation, and other property-level facts may differ. The basis-differentials guide owns that separate market-versus-property distinction; this article only preserves the source labels.

If Source A names a national or benchmark series and Source B names a regional hub, mark the geographic basis different. Do not bridge the difference with an assumed differential.

Compare units before displayed values

EIA’s units and calculators overview explains that energy sources use different physical units and that conversion requires a defined method. Its natural-gas units FAQ distinguishes abbreviations such as cubic feet, Mcf, Btu, and MMBtu.

Copy the unit exactly as displayed, including the currency, denominator, and any scale prefix. For example, a per-barrel oil label and a per-MMBtu gas label belong in different commodity rows. A per-Mcf field and a per-MMBtu field should remain visibly different even when a separate analyst could convert them with additional assumptions.

Do not perform that conversion in the source matrix. A silent conversion can introduce a heat-content assumption, scale error, currency error, or base-period mismatch that the original publication never supplied.

Record nominal or real dollar basis

EIA’s nominal and real prices FAQ says its published prices are generally nominal unless otherwise noted and explains that real prices are adjusted for inflation. That distinction belongs in its own row.

Record one of these labels only when the source supports it:

• nominal;
• real, with the stated base period;
• another explicit constant-dollar convention; or
• not stated.

Do not call a series real because it spans several years. Do not apply an inflation index, choose a base year, or restate one publication to match another inside this workflow. Those are new analytical choices and require separate documentation.

Do not mix forecast decks with reserve-pricing rules

The SEC’s Modernization of Oil and Gas Reporting final rule describes a 12-month average pricing mechanism for specified oil-and-gas reserve disclosures. It also discusses disclosure context and pricing mechanisms. That prescribed reporting frame is not interchangeable with a publisher’s future commodity outlook.

Label the source type before comparing it:

• public forecast or outlook;
• historical observation or spot-price series;
• scenario publication;
• reserve-disclosure pricing method;
• company or third-party planning deck; or
• not stated.

If two documents serve different stated purposes, the matrix should show different use case. Do not splice periods from one into the other or describe the result as a single public price deck.

Use neutral status labels

Give each comparison row one status:

• matched frame when the disclosed commodity, benchmark, geography, unit, dollar basis, interval, horizon, and use case align;
• different frame when one or more disclosed fields differ;
• missing when a cited field or referenced document is unavailable; or
• unresolved when the available source does not support a reliable classification.

These labels describe the source frame only. Matched frame does not mean the displayed values are accurate, likely, appropriate for a property, or suitable for a decision. Different frame does not mean either source is wrong.

Ask source questions instead of filling gaps

Convert every gap into a neutral question:

• “Which dated edition supplied this field?”
• “What forecast-completion or data-through date applies?”
• “Which commodity, benchmark, and geographic basis does this row use?”
• “Is the displayed unit per barrel, per Mcf, per MMBtu, or another stated unit?”
• “Are the dollar amounts nominal or real, and what base period applies?”
• “Is this publication a forecast, historical series, reserve-reporting method, or internal planning case?”
• “Which source states the horizon and update convention?”

Do not answer a missing field with a value from a different publisher or vintage. Preserve the gap so a reviewer can see exactly what remains unsupported.

Stop before property-level analysis

The source matrix is complete when each publication has a stable identity and each comparison row has a copied field, source location, and status. Stop if the next step would require you to:

• create, extend, blend, interpolate, escalate, convert, or normalize a price series;
• select a base, upside, downside, conservative, or recommended deck;
• forecast oil, natural-gas, or NGL prices;
• apply a basis differential, quality adjustment, transportation assumption, or realized-price bridge;
• combine a deck with production, decline, development timing, costs, ownership, or discounting;
• calculate cash flow, present value, mineral-rights value, an offer, or a transaction result; or
• reach a conclusion about engineering, reserves, appraisal, investment, legal, or tax matters.

Those tasks require a separately controlled analysis and may call for a qualified petroleum engineer, reserves evaluator, appraiser, accountant, attorney, tax professional, financial professional, or other appropriate specialist. Give the reviewer the original publications and the completed comparison matrix, not only a blended summary.

A compact quality check

Before sharing the comparison, confirm that:

• every source has an exact title, publisher, date, version, location, and retrieval date;
• each source remains in its own column;
• commodity, benchmark, geography, unit, dollar basis, interval, horizon, and use case are separate rows;
• absent fields say not stated, missing, or unresolved;
• no unit conversion, inflation adjustment, interpolation, extension, or normalization was added;
• forecast, historical, scenario, and reserve-reporting sources are not mislabeled as interchangeable; and
• the document contains no property-level price forecast, value, offer, or recommendation.

That discipline makes the comparison reproducible. It does not make a public deck property-specific, and it does not determine what a mineral interest is worth.

Source scope and research boundaries

• EIA Short-Term Energy Outlook: supports preservation of release, forecast-completion, edition, table, data, and archive context for a dated public outlook.
• EIA nominal and real prices FAQ: supports keeping nominal and inflation-adjusted price bases distinct.
• EIA units and calculators and natural-gas units FAQ: support explicit unit labels and the warning against silent unit conversion.
• SEC Modernization of Oil and Gas Reporting final rule: supports identifying the prescribed reserve-disclosure pricing context separately from a forecast publication.

These sources support the comparison fields and source boundaries only. They do not select or validate a price deck, supply property-specific assumptions, predict realized prices, or determine cash flow, present value, mineral-rights value, an offer, or a transaction result.

Frequently asked questions

What is the first step when comparing public oil and gas price decks?

Save the exact publications and give each one a separate source column. Record the title, publisher, publication date, forecast-completion or effective period, version, stable URL, and retrieval date before copying any commodity field.

Can I place oil and natural gas prices in the same comparison row?

Only if the row keeps the commodity, benchmark, geographic basis, unit, period, and source explicit. A dollar-per-barrel oil field and a dollar-per-MMBtu gas field are different observations and should never be treated as directly interchangeable.

Should I convert nominal prices into real prices for comparison?

Not in this source-preserving workflow. Record the basis exactly as the publisher states it. If a conversion is required for a separate professional analysis, document the method, inflation series, base period, and reviewer outside this comparison.

Is an SEC reserve price the same as a public forecast deck?

No. The SEC reporting framework describes a prescribed pricing mechanism for specified reserve disclosures. A forecast publication has its own stated purpose, dates, assumptions, and horizon. Label them separately rather than blending them.

Does this comparison show which price deck is best for my mineral rights?

No. It shows whether two public sources use the same disclosed frame. Selecting or building a property-specific deck and applying it to production, differentials, costs, ownership, timing, discounting, or value requires a separately defined analysis and qualified review.

Sources reviewed for this article

• U.S. Energy Information Administration, Short-Term Energy Outlook (accessed 2026-08-23)
• U.S. Energy Information Administration, nominal and real prices FAQ (accessed 2026-08-23)
• U.S. Energy Information Administration, units and calculators (accessed 2026-08-23)
• U.S. Energy Information Administration, natural gas units FAQ (accessed 2026-08-23)
• SEC, Modernization of Oil and Gas Reporting final rule, 74 FR 2158 (accessed 2026-08-23)