Charlotte and the ranch country around it fall inside the Eagle Ford's oil window, which is the part of the play the tract desk looks at most carefully because those wells decline hard and fast in year one.

Atascosa County was one of the earlier counties EOG and other operators moved into once Eagle Ford drilling proved out south of San Antonio, and Charlotte sits close to the middle of that early development. Ranching families here have owned minerals for generations in many cases, split off from surface acreage decades before anyone thought about horizontal drilling.

The tract desk underwrites Eagle Ford oil-window tracts differently than gas-window ground further south and east, because the production math is different. If you're weighing a sale on land near Charlotte, the year of first production and the current decline stage on your well matter more than almost anything else.

The Oil-Window Decline Curve, Explained Plainly

Eagle Ford oil wells typically drop 60 to 70 percent of their initial rate in the first year, then flatten into a longer, shallower tail that can run for a decade or more at modest volumes. That means a well drilled in 2012 is producing a fraction of what it did on day one, and a royalty check reflecting that tail is a very different asset than a recently drilled well still working through its steep decline.

When the tract desk looks at a tract near Charlotte, it pulls the well's monthly production history from the Railroad Commission and figure out where it sits on that curve. A tract that's already deep into the flat tail often trades at a different multiple of current cash flow than one still in its first two years, and the tract desk explains which situation yours is in before it quotes.

What's Driving New Drilling Around Atascosa County

Refracturing and infill drilling in older Eagle Ford acreage has picked back up in stretches when oil prices support it, particularly where operators think they left recoverable oil between original well spacing. That's relevant if your tract has an older well, because a nearby infill permit can mean a second bite at production on the same unit.

The tract desk keeps an eye on permitting activity around Charlotte and Atascosa County generally, since offset drilling is one of the clearest signals that a producing tract still has upside left in it, versus one that's genuinely winding down.

Ranch-Family Ownership and Fractional Interests

A good number of the tracts the tract desk looks at around Charlotte trace back to ranching families who leased their minerals during the original Eagle Ford boom and have since passed interests down through a will or an unprobated estate. If title was never formally cleared after a parent or grandparent passed, that doesn't stop a sale, but it does mean the tract desk will ask for the documentation it needs to confirm who actually owns what before closing.

Some owners here hold interests alongside surface ranching operations still run by the family. Selling minerals doesn't touch the surface lease or grazing rights, and the tract desk makes sure owners understand that distinction clearly before they decide anything.

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Owner Questions for This Texas Property File

Resolve these owner questions before a Texas mineral purchase is reduced to a single dollars-per-acre number.

The owner's well near Charlotte was drilled over ten years ago. Is it still worth anything?

Often yes. Eagle Ford oil wells settle into a long, shallow tail after the steep first-year decline, and that tail production can run for years at a modest but steady rate. The tract desk looks at your actual current volumes and price the interest off that, not off the well's original headline numbers.

Does an unprobated estate stop an owner from selling the owner's share?

Not necessarily, but it does add a step. The tract desk will work with you and your title company to confirm the chain of ownership, which sometimes means a simple heirship affidavit rather than a full probate, depending on your family's situation.

How do you value a tract with no current well but nearby production?

The tract desk looks at offset well results, recent permits, and how actively operators are leasing or drilling in that specific part of Atascosa County. Undeveloped acreage near strong producing wells is worth more than acreage in an area operators have moved away from, and the tract desk prices accordingly.

Will selling the owner's minerals affect the owner's family's grazing lease on the same land?

No. A mineral sale is entirely separate from surface use, so any grazing or ranching lease your family has on the property continues exactly as before.

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Put This Interest on a Tract File

Send the county, property description, producing status, operator or well name, and the documents already available.