Wyoming · Green River Basin · Tight Gas

Sell Mineral Rights
in Sublette County,
Wyoming.

Sublette County sits over two of the largest tight gas fields in the Rocky Mountains, the Pinedale Anticline and the Jonah Field. If you own mineral rights here, you likely own a piece of decades of natural gas development, with more drilling inventory still to come. We are happy to help you understand what you have.

~13,500ft
Lance Depth
typical TVD at Pinedale
2
Major Gas Fields
Pinedale & Jonah
3
Stacked Targets
Lance · Mesaverde · Frontier
~80%
Federal Land
of county area, approximate
Pinedale
County Seat
Sublette County
01 The Basin

A tight gas heartland
tucked under the Wind Rivers.

Sublette County sits in west-central Wyoming, bordered by the Wind River Mountains to the east and the Wyoming Range to the west. Geologically it occupies the northern end of the Green River Basin, a deep Cretaceous and Tertiary sedimentary basin that has been producing natural gas for decades.

Two specific fields anchor Sublette's mineral economy: the Pinedale Anticline north of the town of Pinedale, and the Jonah Field to the south near the Sublette and Sweetwater county line. Both fields produce tight gas from the Lance and Mesaverde formations, with additional potential in the deeper Frontier. Together they have made Sublette one of Wyoming's largest natural gas producing counties for many years.

Sublette is a gas county, not an oil county. The rock, the depth, and the burial history all conspired to leave dry gas in place rather than oil. That shapes everything about how mineral rights here behave.

If you are reading this, you probably own a piece of that, possibly inherited from a relative who acquired the minerals long before tight gas drilling was a concept. Maybe a letter arrived from Ultra or Jonah Energy, maybe a royalty check started showing up years ago, maybe you just found old paperwork. This page walks through the rock, the operators, the sub-areas of the county, what shapes value, and how the regulatory side works in a county where federal land is the dominant landowner.

Starting point

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02 The Rock

Three stacked targets. One gas-rich column.

Sublette's productive geology comes from a stack of Cretaceous sandstones and siltstones that were deposited along the margins of an ancient inland sea, buried deep, and matured into tight gas reservoirs. The Lance is the shallowest and most prolific. The Mesaverde sits below it. The Frontier is deeper still and has historically been a secondary target. Wells in the Pinedale and Jonah fields are typically vertical or directional rather than the long horizontals you see in oil shale plays, because the gas column is so thick that vertical penetration through multiple sands works.

Lancetight gas sands

The Lance formation is the primary producing interval at Pinedale and Jonah. It consists of stacked, lenticular sandstone bodies deposited by ancient rivers, separated by mudstones and shales. The sands are tight, meaning gas does not flow without hydraulic fracturing, but the total gas-in-place is enormous because the productive interval can be 3,000 feet thick or more.

For mineral owners, the Lance is typically where the bulk of royalty income comes from. A single Lance well can produce for many decades, though at declining rates after the initial years. The thick productive column also means individual sections can support multiple wells targeting different parts of the Lance interval.

Depth Range
8,000 to 14,000 ft
Type
Fluvial sandstones
Productive Thickness
Often 2,000 to 5,000 ft
Primary Fields
Pinedale Anticline, Jonah
Mesaverdemarine and coastal sands

The Mesaverde sits beneath the Lance and represents older coastal and shallow marine deposits. It produces in many parts of the Green River Basin and is commonly co-developed with the Lance in Sublette County. Like the Lance, it is a tight gas reservoir that requires hydraulic fracturing to produce commercially.

For mineral owners, the Mesaverde is often a secondary revenue stream layered on top of Lance production. Some wells are completed across both intervals, while others target one or the other depending on the operator's development plan.

Depth Range
10,000 to 15,000 ft
Type
Marine and coastal sandstones
Status
Co-developed with Lance
Productivity
Tight gas, fracked
Frontierdeeper Cretaceous sands

The Frontier formation sits below the Mesaverde and represents an older Cretaceous shallow marine sand. In parts of the Green River Basin the Frontier has been a meaningful producer, though in Sublette County it is generally considered a deeper, secondary target relative to the prolific Lance above it. Some operators have tested the Frontier in conjunction with deeper drilling programs.

For mineral owners, the Frontier represents additional upside on existing acreage. It is not typically the primary economic driver, but it can extend the development life of a section beyond the Lance and Mesaverde alone.

Depth Range
12,000 to 17,000 ft
Type
Shallow marine sandstone
Status
Secondary, selective
Where Tested
Select deeper programs
03 The Operators

Who is drilling on your
Sublette County minerals.

Sublette County's operator picture is more concentrated than oil-weighted counties. A handful of operators hold the bulk of the Pinedale Anticline and Jonah Field positions, with a longer tail of smaller operators on the edges of the county. Operator changes have been common over the years as Pinedale and Jonah assets have moved between corporate parents.

i.
Ultra Petroleum (legacy operator, Pinedale)
Ultra Petroleum developed a large share of the Pinedale Anticline over many years and has been one of the historical name-brand operators in Sublette County. The company has gone through several corporate restructurings, and its Pinedale assets have changed hands at various points. Mineral owners with Ultra-era leases may now be receiving royalties from a successor entity, depending on when their well was drilled and how the position has been traded.
Pinedale legacy
Pinedale Core Position
ii.
Jonah Energy
Jonah Energy is the operator of record on much of the Jonah Field and has been the dominant developer of that field for years. The company is private and focused specifically on the Jonah position. Mineral owners in the Jonah Field area are likely to see Jonah Energy on their division orders and royalty statements.
Private · Jonah Field
Jonah Field Operator
iii.
BP America
BP has held positions in the Wyoming portion of the Green River Basin including parts of Sublette County. BP's activity in the area has varied over time as the company has adjusted its onshore US portfolio. Mineral owners with BP-operated wells typically deal with a large, established operator with predictable royalty administration.
Major · Selective activity
Major Operator
iv.
PureWest Energy and Successors
PureWest Energy is among the operators that have held large positions in the Pinedale Anticline in recent years, with assets that trace back through several prior operators. The Pinedale operator picture has been fluid, and ownership of specific producing wells can change as packages of properties move between buyers.
Pinedale current
Active Pinedale
v.
Smaller Operators & Long Tail
Outside of Pinedale and Jonah proper, Sublette County has a long tail of smaller operators on legacy wells, shallow gas, and the edges of the basin. Some of these operators are active in specific townships, others are simply the operators of record on older producing wells whose interests have changed hands several times. Mineral owners may encounter operator names on royalty checks that do not match the original lessee.
Mixed · Multiple operators
Many Smaller Positions
See a familiar name?

We know how these operators develop in Sublette County. Happy to give you context on yours.

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04 The Geography

Not all Sublette County
minerals are built the same.

Sublette is a large county geographically, but mineral value is concentrated in specific sub-areas. The Pinedale Anticline and Jonah Field together account for the bulk of historical production and the bulk of current and future drilling. Outside those two fields, mineral value drops off quickly, with portions of the county covered by mountain ranges, federal wilderness, or simply non-prospective rock.

Pinedale Anticline Core
T31N-T34N R108W-R109W
The geologic crest of the Pinedale Anticline north of the town of Pinedale. Decades of drilling have produced thousands of wells in this area, and remaining inventory exists in undrilled portions of the structure. Mineral owners here typically have producing wells already established.
Activity: Mature Development: Active infill
Jonah Field
T28N-T30N R107W-R108W
A roughly 30-square-mile area of intensely developed tight gas wells in southern Sublette. The Jonah Field has produced gas for decades and is operated primarily by Jonah Energy. Mineral owners in the field typically have multiple producing wells per section.
Activity: Mature Development: Highly developed
Pinedale Flanks
T30N-T34N R107W & R110W
The east and west flanks of the Pinedale Anticline are less heavily drilled than the crest but still produce. Wells here tend to be less prolific than the crest but have added to the long-term inventory of the field. Mineral values here are typically a step below the core.
Activity: Moderate Development: Selective
Big Piney / LaBarge Area
T27N-T29N R112W-R114W
Southwest of Pinedale near Big Piney and LaBarge, this area has a long history of natural gas production from multiple zones including the LaBarge Platform's deeper sour gas plays. Operators have included ExxonMobil through legacy positions. The geology here is distinct from Pinedale-Jonah but still gas-prone.
Activity: Established legacy Development: Long history
Wyoming Range / Western Sublette
T30N-T36N R114W-R118W
The Wyoming Range runs along the western side of Sublette County and includes substantial federal land with leasing restrictions tied to wilderness and roadless areas. Mineral interests here can be valuable on producing units but development is constrained by surface and policy considerations.
Activity: Constrained Development: Limited
Wind River Front / Eastern Sublette
T30N-T36N R104W-R106W
Eastern Sublette County rises into the Wind River Range, with significant areas of federal wilderness, Bridger-Teton National Forest, and Shoshone National Forest. Mineral development is very limited in this area for surface, environmental, and prospectivity reasons.
Activity: Minimal Development: Restricted
05 Your Valuation

What your Sublette County
mineral rights are worth.

There is no universal formula. Valuation in Sublette County is shaped by which field your minerals sit in, how much production already exists on your section, what gas prices are doing, and how much remaining drilling inventory the operator still has on your unit. Sublette is a gas-weighted county, which means values move with natural gas prices more than oil prices, and that distinction matters when comparing offers across different basins.

01
Producing Minerals with Active Royalty Income
Valued on cash flow plus remaining inventory
If your Sublette County minerals are producing and you receive monthly royalty checks, valuation typically starts with the trailing twelve months of royalty income. A buyer applies a multiple based on expected remaining well life, future drilling potential on your section, gas price outlook, and operator quality. Pinedale and Jonah wells often have long production tails, which supports value even on older wells.
What shapes the number: well vintage and decline curve, how many undrilled Lance or Mesaverde locations remain on your section, your royalty rate, current and forward natural gas prices, operator quality, and whether your lease permits cost deductions for transportation, processing, and compression.
02
Unleased Minerals in Active Development
Valued on field position and operator activity
Unleased Sublette minerals are valued on where they sit relative to existing development and how likely they are to be drilled in a reasonable timeframe. Unleased acreage inside the Pinedale Anticline or Jonah Field is typically worth more than unleased acreage on the flanks, because development is closer. Unleased minerals also carry optionality because lease terms can be negotiated directly.
What shapes the number: position relative to the field crests, recent operator permit activity, formation quality beneath your section, comparable lease bonuses paid on surrounding tracts, and whether the section is likely to be force pooled by the operator.
03
Small Fractional Interests & Inherited Positions
Often overlooked, often worth more than expected
Many Sublette County mineral owners hold small fractional interests inherited across generations, often spread across heirs in different states. Some of these positions have been receiving small monthly royalty payments for years without anyone in the family fully understanding what they own. We pay these interests the same attention as larger ones and are comfortable doing the title research on fractional chains.
What shapes the number: net mineral acre count, royalty rate if leased, producing status, operator quality, remaining drilling inventory on the section, and whether other heirs holding the same chain are also ready to act.
04
Leased but Not Yet Producing
Valued on lease terms and proximity to activity
If your minerals are leased but not yet producing, value depends on the lease terms and how close active drilling has moved toward your acreage. A lease held by an active operator with a real development plan is worth more than one held by a passive leaseholder waiting on conditions. Sublette leases vary in royalty rate, primary term, and the protective clauses that affect long-term mineral owner economics.
What shapes the number: your royalty rate, primary term expiration, the specific operator holding the lease, recent drilling activity in adjacent sections, and whether your lease has a Pugh clause or similar acreage-protection language.
Your specific situation

We would rather look at real facts than speak in generalities. Send us what you have.

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06 The Regulatory Landscape

Wyoming rules,
federal land realities.

Sublette County operates under the standard Wyoming oil and gas regime, administered by the Wyoming Oil and Gas Conservation Commission, but the practical day-to-day picture is heavily shaped by federal land. A very large share of Sublette is BLM and Forest Service land, which means the BLM is a constant presence in the development process.

The WOGCC and how spacing works

The Wyoming Oil and Gas Conservation Commission regulates oil and gas activity on state and private minerals in Sublette County. The WOGCC permits wells, sets spacing units, holds hearings on pooling and unitization matters, and maintains the public well database. Wyoming allows compulsory pooling of unleased mineral interests into spacing units, which is the standard framework used in active Sublette fields.

The BLM and federal mineral acreage

The BLM Pinedale Field Office administers a large share of the federal minerals in Sublette County. Federal leases are auctioned periodically and federal wells go through a separate Application for Permit to Drill process. Where federal minerals are interspersed with private minerals (a common pattern called a checkerboard or split-estate), development is coordinated across both jurisdictions. The Pinedale Anticline and Jonah Field both involve significant federal mineral acreage.

Surface use, sage grouse, and wildlife stipulations

Sublette County is home to important wildlife including sage grouse, mule deer migration corridors, pronghorn, and big game winter range. The BLM and the state of Wyoming have specific stipulations that affect when operators can drill and where surface facilities can sit. Within Pinedale and Jonah, operators have used directional drilling from concentrated pads to reduce surface footprint, partly as a response to these wildlife considerations.

Split estate and private mineral patents

Many Sublette County mineral interests trace back to homestead-era patents where the surface and the minerals were eventually separated. Today it is common to have private (fee) minerals under federal surface, or vice versa. The mineral estate is the dominant estate for development purposes, but coordination with the surface owner, whether private or federal, is required.

07 Questions We Hear Often

The real questions
mineral owners ask.

We have been through these conversations many times. Below are honest answers to the things people actually want to know.

01
How much are mineral rights worth in Sublette County, Wyoming?
Sublette County mineral values depend heavily on whether your acreage sits inside the Pinedale Anticline, the Jonah Field, or in less developed parts of the county, and on whether your minerals are leased, producing, or unleased. Sublette is primarily a natural gas county, so values track gas prices more than oil. The same mineral interest can be worth meaningfully different amounts depending on the specific section, the operator, and how much remaining drilling inventory exists. The only way to know what your specific minerals are worth is to look at the actual facts of your tract. We are happy to do that for you, at no cost and no obligation.
02
What is the difference between the Pinedale Anticline and the Jonah Field?
They are two adjacent tight gas fields in Sublette County, both producing from similar rocks but with different geologic structures. The Pinedale Anticline is a long, narrow uplift north of the town of Pinedale, developed primarily by Ultra Petroleum historically. The Jonah Field sits to the south and was developed primarily by what is now Jonah Energy. Both fields produce gas from the Lance and Mesaverde formations through tight gas wells. From a mineral owner perspective, they behave similarly but have different operators, different surface use restrictions, and slightly different development patterns.
03
I inherited mineral rights in Sublette County but I do not have any documents. What do I do?
This is one of the most common situations we see. Start with what you do have: old letters, royalty stubs, tax statements, probate paperwork, division orders. The Sublette County Clerk's office in Pinedale keeps the recorded deed records. The Wyoming Oil and Gas Conservation Commission maintains public well and production data, and the BLM tracks federal leases (which matter a lot in Sublette because much of the county is federal land). We can usually identify what someone owns with just a name and a general idea of where the minerals are, because Wyoming records are publicly accessible once you know where to look.
04
Should I sell my Sublette County mineral rights now or hold them?
That depends on your situation. People who hold typically want long-term royalty income, do not need cash for other purposes, and are comfortable with natural gas price volatility. People who sell typically want to convert uncertain future income into certain present value, simplify an estate, or use capital for something else. Sublette is a gas-weighted county, so commodity price swings affect royalty checks more sharply than they do in oil-weighted plays. Neither holding nor selling is wrong. We can help you think through the tradeoffs without pressure either way.
05
Why is Sublette County a gas play and not an oil play?
The Cretaceous-age formations that make up the Pinedale Anticline and Jonah Field, primarily the Lance and Mesaverde, were buried deep enough and long enough that the original hydrocarbons were cooked into dry gas rather than remaining as oil. The rock is also very tight, meaning gas does not flow easily without hydraulic fracturing. As a result, Sublette has been one of the largest natural gas producing counties in Wyoming for many years, while oil production has been a relatively small part of the picture.
06
Most of my section is federal land. Does that affect my minerals?
It depends on whether the federal land also carries the federal mineral estate. In Sublette County, a large portion of both the surface and the minerals is federal, administered by the BLM. If your minerals are private (fee) but the surface is federal, development still happens but with more BLM coordination. If your minerals are also federal, you do not own them and would not receive royalty payments from the federal interest. Many owners hold fee minerals under federal or split-estate surface, and those minerals are perfectly developable and saleable.
07
What is the difference between an offer to lease and an offer to buy my minerals?
Leasing gives an operator the right to develop your minerals for a set period, typically three to five years, with extension if production is established. You receive a bonus payment per net mineral acre and a royalty on any production. You still own the minerals. Buying transfers ownership entirely in exchange for a lump sum. After a sale, you no longer own the minerals and you receive no future royalties. Both have their place. Buying typically delivers more value up front, leasing preserves long-term upside but exposes you to gas price swings.
08
What about sage grouse and other surface restrictions in Sublette?
Sublette County has significant sage grouse habitat, and the BLM and state of Wyoming have specific stipulations that affect drilling timing and surface disturbance in core habitat areas. There are also seasonal wildlife stipulations for big game winter range and crucial habitat. These rules affect when and where operators can drill but generally do not prevent development of the minerals themselves. They can lengthen the development timeline, which is something to keep in mind for valuation.
09
Can I sell mineral rights I inherited if other family members inherited the same minerals?
Yes. You can sell your undivided fractional interest without needing the other heirs to participate. This is very common in Sublette County, where many interests have been subdivided across generations and now sit with heirs scattered across multiple states. A good buyer will work with your specific interest, not require you to round up cousins. We do this regularly.
10
Why should I sell to Timberline Minerals specifically?
We are a family-owned office with roots in Texas and Montana. We work across the primary US basins but spend a lot of our time in the Powder River Basin, the DJ Basin, the Williston Basin, and the Green River Basin including Sublette County. That means we know the Pinedale and Jonah fields, the operators working here, and how Wyoming and the BLM handle their respective pieces. We work with mineral interests of all sizes. Our process is simple: we research the tract, share what we find, and make an offer. The decision is yours.

Find out what your
Sublette County minerals
are actually worth.

Send us what you have, or what you think you have. We will pull WOGCC and BLM records, check operator activity in your section, and put together a plain-English summary with our reasoning. If it makes sense to go further, we move on your timeline. If not, you have a free breakdown you can take anywhere.

Free · No Obligation · Your Timeline