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Texas · East Texas · Haynesville Shale

Sell Mineral Rights
in Harrison County,
Texas.

Harrison County sits in the East Texas core of the Haynesville Shale, one of the most productive dry gas plays in the country and the gas basin closest to Gulf Coast LNG export terminals. If you own mineral rights here, you are in the part of the country that is supplying global LNG demand. We are happy to help you understand what you have.

Drygas
Haynesville Play
Tied to Henry Hub
~11,500ft
Haynesville Depth
typical TVD
10,000ft
Standard Lateral
with longer pilots
Multiple
Stacked Targets
Haynesville, Bossier, Cotton Valley
LNG
Gulf Coast Demand
Sabine, Cameron, Freeport
01 The Basin

The gas basin closest
to LNG export.

Harrison County sits in the northeastern corner of Texas, on the Louisiana state line, in the heart of the East Texas Haynesville Shale fairway. The Haynesville is one of the largest dry gas plays in the United States, and its proximity to Gulf Coast LNG export terminals at Sabine Pass, Cameron, Freeport, and the newer Plaquemines and Golden Pass facilities has kept the play active even when gas prices elsewhere have struggled.

The Haynesville stretches across northwest Louisiana and into east Texas, with Harrison and surrounding counties forming the Texas side of the play. Modern Haynesville wells are drilled deep, often to more than 11,000 feet of true vertical depth, with horizontal laterals of 7,500 to more than 10,000 feet. Wells are expensive to drill and complete, but the gas-in-place is enormous and the proximity to demand is unmatched among US gas basins.

The Haynesville is a dry gas play with a built-in customer. As US LNG export capacity has grown, the gas basin sitting closest to the docks has stayed active through cycles that have slowed other gas plays.

If you are reading this, you may own a piece of that. Maybe you inherited minerals that trace back to old East Texas family farms or original land grants. Maybe you have been receiving Cotton Valley royalty checks for decades and recently started seeing new Haynesville checks. Maybe an operator just sent you a letter asking to lease unleased acreage. This page walks through the rock, the operators, the geography, valuation, and the Texas regulatory landscape.

Starting point

Have minerals in Harrison County? Send us what you have and we will take a look.

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02 The Rock

Stacked gas pay across
the East Texas column.

Harrison County's productive geology is stacked, with multiple gas-bearing intervals at different depths. The Haynesville Shale is the deepest and most active modern target. The Bossier Shale sits just above it and is increasingly developed. Above both, the Cotton Valley tight sands have produced for decades and continue to support legacy and selective new development. Many sections produce from multiple zones at once.

Haynesville ShalePrimary modern target

The Haynesville Shale is the dominant target in Harrison County and the broader East Texas Haynesville fairway. It is an organic-rich, high-pressure marine shale of Late Jurassic age. The combination of depth, high pressure, and rich source rock produces exceptional initial well rates, though wells decline steeply in the first eighteen months.

For mineral owners, Haynesville development typically means one to several wells per spacing unit drilled across the life of development. Modern Haynesville completions use very large amounts of proppant and water, and well costs are among the highest of any US shale play, which is why operators tend to drill in periods of supportive gas pricing.

Depth Range
10,500 to 12,500 ft
Type
Organic-rich marine shale
Product
Dry gas
Typical Lateral
7,500 to 10,000+ ft
Bossier ShaleEmerging stacked target

The Bossier Shale sits just above the Haynesville and shares many characteristics, though it is generally thinner and slightly less pressured. Operators have increasingly developed Bossier horizontals in parts of the East Texas Haynesville fairway, sometimes from the same surface pads as Haynesville wells. The Bossier adds meaningful inventory depth to Harrison County sections.

For mineral owners, Bossier inventory is part of why Haynesville-area sections often carry more remaining drilling potential than a quick look at existing well count would suggest. A section with one Haynesville well may still have additional Haynesville locations plus separate Bossier locations.

Depth Range
~10,000 to 11,500 ft
Type
Marine shale
Product
Dry gas
Status
Selective horizontal development
Cotton ValleyLegacy tight gas sands

Above the Bossier and Haynesville sits the Cotton Valley group, a sequence of tight gas sands that was the primary East Texas gas target for decades before the Haynesville unconventional revolution. Many Harrison County sections have vertical Cotton Valley production going back into the 1980s and earlier, and some operators have drilled horizontal Cotton Valley wells where the geology supports it.

The practical implication for mineral owners is that older inherited interests often have decades of Cotton Valley production history, and new Haynesville development can layer on top of existing Cotton Valley royalty streams from the same minerals.

Depth Range
7,500 to 9,500 ft
Type
Tight gas sands
Product
Gas with some liquids
Status
Legacy vertical, selective horizontal
03 The Operators

Who is drilling on your
Harrison County minerals.

The East Texas Haynesville operator landscape is a mix of large public independents, well-capitalized private companies, and legacy gas producers. The operators below are among the most active in Harrison County, but several other companies also hold meaningful positions in the county.

i.
Comstock Resources
Comstock Resources is one of the largest pure-play Haynesville operators and a major Harrison County leaseholder. The company is publicly traded and has consistently been one of the most active drillers in the East Texas Haynesville fairway. Comstock's Haynesville-focused strategy makes it a familiar name on Harrison County division orders.
Public · Pure-play Haynesville
Top East Texas Operator
ii.
Aethon Energy
Aethon Energy is a large privately held Haynesville operator with substantial acreage across the East Texas and northwest Louisiana sides of the play. Aethon has been among the most active Haynesville drillers across multiple cycles and is a frequent presence on Harrison County wells.
Private · Major Haynesville
Top Private Operator
iii.
Sabine Oil and Gas
Sabine Oil and Gas has historically been a meaningful East Texas operator with both Haynesville and Cotton Valley positions. The company name is familiar to long-time Harrison County mineral owners through both legacy production and modern Haynesville development.
Private · East Texas focus
Legacy East TX Operator
iv.
Rockcliff Energy & Tokyo Gas
Rockcliff Energy was a major East Texas Haynesville operator that was acquired by Tokyo Gas in 2024, reflecting the strategic interest of LNG end-buyers in upstream Haynesville positions. The combined position represents meaningful current activity in the East Texas fairway.
Strategic · LNG-linked
Major East TX Position
v.
Long Tail of Public and Private Operators
Harrison County has additional meaningful operators including BPX Energy (BP's onshore arm, with substantial Haynesville assets through the BHP acquisition), Vine Energy legacy assets now part of Chesapeake (now Expand Energy following the Southwestern merger), and various smaller private operators focused on Cotton Valley and shallower targets. Mineral owners may see different operator names on different wells within the same general area.
Mixed · Many active
Many Active Operators
See a familiar name?

We know how these operators develop in East Texas. Happy to give you context on yours.

Ask About Your Operator →
04 The Geography

Not all Harrison County
minerals are built the same.

Harrison County covers about 900 square miles in the northeastern corner of Texas, bordering Caddo Parish, Louisiana to the east. The Haynesville fairway runs through the central and eastern portions of the county, with productivity varying by section. Marshall is the county seat and regional service hub. Where in the county your minerals sit shapes operator activity, formation thickness, and reservoir pressure.

Marshall Area
Central Harrison
The geographic and operational center of the county. Marshall is the regional service hub and county seat. Sections in this area typically have meaningful Haynesville development and substantial Cotton Valley legacy production. Remaining inventory across stacked pay supports continued royalty income on most active tracts.
Activity: High Development: Mature, infill
Eastern Harrison / Louisiana Border
Eastern townships
Eastern Harrison County borders Caddo Parish, Louisiana, which is the heart of the Louisiana side of the Haynesville. Reservoir thickness and pressure are often strongest along the state line corridor. Operators frequently drill units that span or sit immediately adjacent to the state boundary, with the Texas side and Louisiana side under separate state regulators.
Activity: Highest in county Development: Active
Northern Harrison
Northern townships
Northern Harrison transitions toward Marion County. Haynesville quality is generally good across this area, with operators continuing to drill where economics support it. Many sections have a mix of older Cotton Valley vertical wells and newer Haynesville horizontals.
Activity: Moderate to High Development: Active
Southern Harrison / Panola Border
Southern townships
Southern Harrison transitions toward Panola County, another major East Texas Haynesville county. The fairway continues across the boundary, with operators drilling on both sides. This area has been consistently active and often shows similar reservoir characteristics to neighboring sections in Panola.
Activity: High Development: Active
Western Harrison
Western townships
Western Harrison transitions toward the western edge of the Haynesville fairway, where the reservoir gradually thins and pressure declines. Activity here is more selective, but Cotton Valley and shallower legacy production continues to generate royalty income for many older inherited interests.
Activity: Moderate Development: Selective
Caddo Lake Corridor
Northeastern Harrison
The area around Caddo Lake near the Louisiana border has surface complications that can affect drilling unit design and surface use, but the subsurface remains part of the Haynesville fairway. Mineral interests here are valued on the same reservoir basis as adjacent areas, though surface access may affect timing of development.
Activity: Variable Development: Surface-dependent
05 Your Valuation

What your Harrison County
mineral rights are worth.

Valuation in Harrison County reflects what is fundamentally a gas play, which means values track natural gas prices and LNG demand more than oil. Multiple stacked formations, proximity to Gulf Coast LNG, and substantial remaining Haynesville and Bossier inventory all support mineral valuations. The four scenarios below cover what we see most often.

01
Producing Minerals with Active Royalty Income
Valued on cash flow plus remaining inventory
If your Harrison County minerals are actively producing, 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 across Haynesville, Bossier, and any Cotton Valley inventory, and forward gas pricing. Haynesville multiples tend to move with gas prices more than oil-focused basins, so timing of valuation can matter.
What shapes the number: well vintage and remaining life across existing wells, how many additional Haynesville and Bossier locations remain undrilled, your royalty rate, the operator quality, and your lease cost-deduction language.
02
Unleased Minerals in Active Development Areas
Valued on drilling proximity and future potential
Unleased Harrison County minerals, particularly along the Louisiana border or in active operator footprints, are valued on expected development timing. Operators are competing for acreage in the East Texas fairway, which supports negotiation on lease bonus and royalty rate. Unleased minerals also carry optionality if gas pricing improves.
What shapes the number: nearby permit activity, the operator's recent drilling pace in your section, formation quality beneath your specific tract, comparable lease bonuses paid on surrounding tracts, and whether the section is part of an operator's near-term drilling plan.
03
Small Fractional Interests & Inherited Positions
Often worth more than expected
Many Harrison County mineral owners hold small fractional interests inherited across multiple generations, with chains often going back to original East Texas land grants. Even small fractional interests with Haynesville development can carry meaningful value. We pay these interests the same attention as larger ones and are comfortable doing the title research, including chains spread across heirs in different states.
What shapes the number: net mineral acre count, royalty rate if leased, producing status, accumulated unpaid suspense (sometimes meaningful for inherited interests), and whether other heirs holding the same chain are also active.
04
Leased but Not Yet Producing
Valued on lease terms and proximity to activity
If your Harrison County minerals are leased but not yet producing, value depends on the lease terms and how quickly the operator is moving toward drilling. East Texas Haynesville leases typically have three to five year primary terms with extension by production. A lease held by an active Haynesville operator is worth materially more than one held by a passive leaseholder waiting on gas pricing.
What shapes the number: your royalty rate, primary term expiration, the specific operator holding the lease, recent drilling activity in adjacent units, 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.

Request an Analysis →
06 The Regulatory Landscape

Texas rules,
East Texas realities.

Harrison County operates under the Texas oil and gas regime, administered by the Texas Railroad Commission. Texas is a private-property state with relatively limited state-owned mineral acreage in this part of the state, which means most Harrison County minerals are held by private fee owners rather than the state or federal government. That changes the leasing dynamics considerably compared to states like New Mexico or Wyoming.

The Railroad Commission and how it works

The Texas Railroad Commission (RRC) regulates oil and gas activity statewide. The RRC permits wells, assigns lease and unit numbers, conducts spacing and unitization hearings, and maintains the public well and production database. The RRC is the primary place to look up well information for any Harrison County section. Texas spacing rules have evolved substantially to accommodate modern horizontal development, with operators typically seeking unit designations that match two-mile or longer laterals.

Private fee minerals and the leasing market

Most Harrison County minerals are private fee minerals, owned by individuals, families, trusts, and estates. There is comparatively limited state acreage in East Texas. The practical effect is that leasing is a direct negotiation between mineral owner and operator, with no public auction process. Lease terms, bonus payments, and royalty rates are determined by negotiation and market conditions.

Post-production costs and lease language

Post-production cost deductions, covering gathering, compression, treating, and transportation of gas from the wellhead to a sales point, are a material issue in any dry gas play including the Haynesville. Whether your lease permits which deductions depends entirely on the lease language. Texas case law on post-production costs has evolved over the years, and the specific terms of your lease control most of the outcomes. Reading your lease carefully matters.

The Cotton Valley legacy and old leases

Many Harrison County interests are held by leases originally executed for Cotton Valley vertical development, sometimes decades old. These older leases may have different royalty rates, different cost-deduction language, and different unit designations than modern Haynesville leases. If a Haynesville well has been drilled on minerals held by an old Cotton Valley lease, the operator may be developing under the existing lease terms, which can affect your royalty calculation.

07 Questions We Hear Often

The real questions
mineral owners ask.

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

01
How much are mineral rights worth in Harrison County, Texas?
Harrison County values are driven primarily by the Haynesville Shale, which is a dry gas play. That means valuations track natural gas pricing more than oil pricing, and tend to move with the Henry Hub forward curve and with LNG export demand on the Gulf Coast. The depth of remaining Haynesville and Bossier inventory across most sections supports continued drilling for many years. Values vary widely depending on your section, your operator, lease terms, and whether your minerals are producing, leased, or unleased. The only way to know what your specific minerals are worth is to look at the actual facts. We are happy to do that for you, at no cost and with no obligation to sell.
02
Why is the Haynesville different from the Permian or other oil plays?
The Haynesville is a dry gas play, not oil. That means the economics depend on natural gas prices rather than oil prices, and the buyer pool, drilling pace, and valuation methodology look different. The Haynesville is also one of the deepest major shale plays in the US, with wells frequently drilled to more than 11,000 feet of true vertical depth. Wells are expensive to drill but very productive when gas prices support development. Proximity to Gulf Coast LNG export terminals is a major reason the Haynesville has remained active even when other gas basins have slowed.
03
I inherited mineral rights in Harrison County but I do not have any documents. What do I do?
You are not alone. This is a common situation. Start by gathering anything you do have: old letters from operators, tax statements, probate records, royalty stubs, division orders. The Harrison County Clerk's office in Marshall keeps deed records going back to the original land grants. The Texas Railroad Commission maintains a public database of wells, operators, and production. We can usually identify what someone owns with just a name and a rough idea of where the minerals are located, because Texas county records are publicly accessible.
04
Should I sell my Harrison 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 priorities, and are comfortable with gas price volatility. People who sell typically want to convert future uncertain income into certain present value, simplify their estate, or use the capital for something else. The Haynesville's deep inventory and proximity to LNG demand support a reasonable holding case, but gas prices can swing sharply and that uncertainty cuts both ways. Neither choice is wrong. We can help you think through the tradeoffs without pressure to pick a side.
05
My royalty checks went down. Did the operator do something wrong?
Usually not. Haynesville royalty checks are tied directly to natural gas prices, which move substantially month to month. When Henry Hub falls, your check falls, even if production volume is steady. Wells also decline naturally, with the steepest decline in the first eighteen months after a well is completed. If you want to understand a specific decline in your checks, comparing the volume figure on your statement to the price figure usually tells the story. We can help walk through a statement if it would help.
06
What are post-production cost deductions and why do they matter in the Haynesville?
Post-production costs are expenses incurred after gas leaves the wellhead, including gathering, compression, treating, and transportation to a sales point. Whether an operator can deduct these costs from your royalty depends entirely on your lease language. Older leases often allow broader deductions; newer leases sometimes include language protecting royalty owners from certain costs. In a dry gas play like the Haynesville, these deductions can be meaningful, so reading your lease carefully matters.
07
What is the Cotton Valley and does it still produce?
The Cotton Valley is a tight gas sand sequence that sits above the Haynesville and was the primary East Texas gas target before the Haynesville unconventional revolution. Many Harrison County sections have legacy Cotton Valley vertical wells that still produce, and some operators have drilled horizontal Cotton Valley wells where the geology supports it. If your minerals have older production, it is often from Cotton Valley or shallower zones. The Haynesville is typically a deeper, separate target.
08
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 extremely common in Harrison County, where many interests have been subdivided across generations of heirs going back to original East Texas land grants, often spread across multiple states. A good buyer will work with your specific interest, not require you to round up cousins. We do this all the time.
09
How does the sale process actually work?
Step one, we do the research. You send us what you have, we pull Texas Railroad Commission records, we check operator activity in the unit, and we build an analysis. Step two, we send you a written summary with our reasoning. Step three, if you want to proceed, we handle the mineral deed preparation, you sign at a notary, and funds are wired at close. We move on your timeline, whether that is quick or deliberate. There is no charge for the research and no obligation to sell.
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 and we are comfortable with East Texas Haynesville specifics including Cotton Valley legacy production, post-production cost deductions, and the Railroad Commission permitting process. We work with mineral interests of all sizes including small fractional positions. Our process is straightforward: we research the tract, share what we find, and make an offer. The decision to sell is yours, and we are happy to help you understand what you have either way.

Find out what your
Harrison County minerals
are actually worth.

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

Request a Valuation (512) 626-7267
Free · No Obligation · Your Timeline
08 Keep Reading

More for Harrison County
mineral owners.

Guide · 6 min read
I inherited mineral rights. What now?
A walkthrough of the first few things to look at, whether you just found out or have been sitting on it for years.
Read the guide  →
Guide · 8 min read
How mineral rights are valued
The core inputs that go into a mineral valuation. Production, inventory, operator, lease terms, and what each one actually means in practice.
Read the guide  →
Guide · 5 min read
What to look for in an offer
Reading an offer letter, understanding what is and is not included, and the questions worth asking before responding.
Read the guide  →
Market Pulse

Haynesville status, June 2026

12 month gas production trend
15.78
billion cubic feet per day
Latest month
+0.21(+1.3%)
billion cubic feet per day
Month over month
+1.01(+6.8%)
billion cubic feet per day
Year over year
Last updated June 2026. Source: US Energy Information Administration, Short-Term Energy Outlook regional production estimate (June 2026).