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McMullen County, Texas · McMullen County Appraisal District

McMullen County: your mineral tax protest is due May 17 or 30 days after your notice

The McMullen County Appraisal District sends a value for every mineral interest in McMullen County, and you have until a set day to protest it. For 2027 the earliest that day can be is May 17, 2027 (May 15 moved past a weekend); a notice that reaches you late gives you 30 days from delivery.
Open the district’s protest pageWork out my day

No form needed to protest.

MINERAL PROPERTY TAX · 2027

Your last day is the later of two dates

May 17, 2027

is the earliest it can be. It is May 15, moved to the next business day.

  • Notice due out May 1, 2027
  • May 15 rule May 17, 2027
  • 30 days later Jun 1, 2027

The state asks for notices on minerals by May 1 or soon after. A notice that comes then gives you 30 days from the day it was delivered, which ends June 1, 2027 for a notice of May 1.

Find the date printed on your notice.

The deadline

The 2027 protest day in McMullen County

Tax Code section 41.44(a)(1), moved past a weekend or federal holiday. The same rule for every Texas county.

The rule

Written notice of protest must reach the appraisal review board by May 15 or the 30th day after the appraisal notice was delivered, whichever is later (Tax Code 41.44(a)(1)). A notice mailed by first-class mail is presumed delivered the day it is deposited in the mail (Tax Code 1.07(c)); if the last day is a Saturday, Sunday or legal holiday, the next regular business day counts (Tax Code 1.06); a protest sent by first-class mail counts as timely if postmarked on or before the due date (Tax Code 1.08). Tax Code §41.44 Tax Code §1.06 Tax Code §1.07

The dates for 2027

  • May 17, 2027: May 15, moved to the next business day.
  • Jun 1, 2027: the last day for a notice mailed May 1, the latest the state asks for notices on minerals.
  • Your day is on your notice: 30 days from the day it was delivered, when that is later.

Want the date for your own notice? The deadline finder takes the date on it and the county.

Free reminder

Get an email before the McMullen County deadline

Add the account numbers from your mineral tax bills. We email you 45, 30, 14, 7 and 1 day before the 2027 deadline, Monday, May 17, 2027. When your notice of appraised value arrives, add the date it was delivered and the reminders move with your day.

Free with an account, for up to 20 accounts. The number to copy is printed near the top of each bill.

Set up my reminderWhy did I get several bills?

Emails before the 2027 protest deadline

  1. Apr 245 days before
  2. Apr 1730 days before
  3. May 314 days before
  4. May 107 days before
  5. May 161 day before
  6. May 17the deadline

Your notice can give you a later day.

McMullen County Appraisal District

How McMullen County Appraisal District takes a protest

Read from the district's own pages, not from a directory.

Where and how

We read these pages on Sep 29, 2026.

Who values minerals

The district's site links Capitol Appraisal Group (cagi.com); the pages read do not say who appraises minerals.

The numbers in this county

What McMullen County reported

County totals from the Railroad Commission's production reports, and the appraisal roll as totals. Your own account is its own number.
Oil in McMullen County, 12 months to 2026/07
27M202432M202525M2026

Barrels, all leases, each bar the 12 months ending in that year's latest month, whole lease.

  • Oil: 25,127,932 bbl, down 20.4% on the year before.
  • Gas: 202,175,421 mcf, down 1.0% on the year before.
  • WTI averaged $74.28 a barrel, up 6.5% on the year before ($69.73).
  • Two years back: 26,829,519 bbl of oil.

When the district values a mineral interest by the income it will earn, the statute sets the price basis: the average price of the interest for the preceding calendar year times an adjustment factor. Tax Code §23.175 Set your statements beside the value on your notice to see whether they tell the same story.

What to bring

The evidence that counts

The value came from a model. Your records show what the interest earned.
  • Your royalty statements for the last three years, gross and net for the account.
  • The value on the notice for the same account, and the account number.
  • Your decimal and the lease it comes from, and the state’s monthly production for that lease. RRC, Production Data Query

FAQ

Questions people ask

When is the McMullen County mineral property tax protest deadline?

You file a written notice of protest with the appraisal review board not later than May 15 or the 30th day after the appraisal notice was delivered to you, whichever is later (Tax Code section 41.44(a)(1)). For the 2027 tax year May 15 falls on a Saturday, so the day the state's rules count is May 17, 2027 (section 1.06). A notice delivered after April 15 gives a later day: 30 days from delivery.

How do I file a protest with the McMullen County Appraisal District?

The district offers Taxpayer Portal (online appeals). It lists these ways to file: online, by mail. Its protest page is linked on this page. A notice of protest does not have to be on an official form: it must identify you, identify the property and say you disagree with a determination of the appraisal office (Tax Code section 41.44(d)).

Who values minerals in McMullen County?

The district's site links Capitol Appraisal Group (cagi.com); the pages read do not say who appraises minerals.

Has oil output in McMullen County gone up or down?

In the 12 months to Jul 2026 the Railroad Commission's reports show 25,127,932 barrels of oil and 202,175,421 mcf of gas from McMullen County: oil down 20.4% and gas down 1.0% on the 12 months before. WTI averaged up 6.5% over the same span. Your own account may differ from the county total.

What if I miss the deadline?

An owner who files after the deadline but before the appraisal review board approves the appraisal records is entitled to a hearing if the owner shows good cause for filing late, as the board decides (Tax Code section 41.44(b)). After the records are approved that door is closed.

Related

Other counties

Protest pages for the other mineral counties

Have your statements? Build the protest pack.

Sets the value on your notice beside what your account earned, with the letter and the deadline. Sign in to start.

Open my protest pack

Sources

Primary sources, opened on 29 September 2026. Statute text is the current version on statutes.capitol.texas.gov.