Texas oil lease · RRC district 08 · Lease 51829
ProducingMONSTRO UNIT 04-16
Monstro Unit 04-16 is an oil lease in Howard County, Texas, operated by Surge Operating, LLC in the Spraberry (Trend Area) field. The Railroad Commission shows 131,147 bbl of oil in the 12 months through Jul 2026.
Oil lease dossier · 11 wells
- Operator
- Surge Operating, LLC
- County
- Howard County
- RRC lease
- 08-51829
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Where it sits
This county
- Gas, last 12 months
- 1,664,607 mcf
- Oil in Jul 2026
- 7,535 bbl
- Reporting to the state
- since Jan 2020
- Wells
- 11
Production
Month by month, from the state record
Oil output fell 36% over the last 12 months
131,147 bbl in the 12 months through Jul 2026, against 204,342 bbl in the 12 months before.
- Oil (bars, left axis)
- Gas (line, right axis)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, oil lease 51829, district 08. Reported through Jul 2026. The state revises recent months.
Gas disposition
Where the gas went
98% of the gas went to a processing plant in the last 12 months
Flaring peaked at 18.4% of the gas in Sep 2023.
- Processing plant (3)
- Lease fuel (1)
- Flared (4)
SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 51829, district 08. Reported through Jul 2026.
Processing plant (3)
Sent to a gas plant that pulls out natural gas liquids. Your statement should show plant products, and may show processing fees.
Lease fuel (1)
Burned to run equipment on the lease. Not sold, so it pays no royalty. A few percent is normal.
Flared (4)
Burned off or vented, not sold. It pays no royalty. More than 3% in a month is worth watching.
Over the last 12 months, 2.2% of the gas was flared. 7 months went above 3%, which we mark in the ledger below.
Operator history
Who has run this lease
Surge Operating, LLC has reported this lease for the whole period
No change of operator in the months we hold.
- Surge Operating, LLC Jan 2020 to now
SourceTexas Railroad Commission Production Data Query, operator by month. Reported through Jul 2026.
Wells
11 wells on this lease
| API number | Well no. | Status | Total depthft |
|---|---|---|---|
| 42-227-39655 | 8AH | Active | – |
| 42-227-39822 | 7AH | Active | – |
| 42-227-39823 | 7SH | Active | – |
| 42-227-40182 | 6SH | Active | – |
| 42-227-40183 | 6AH | Active | – |
| 42-227-40434 | 5AH | Active | – |
| 42-227-40435 | 5SH | Active | – |
| 42-227-40436 | 5MH | Active | – |
| 42-227-41159 | 6MH | Active | – |
| 42-227-41160 | 6CH | Active | – |
| 42-227-41524 | 8MH | Active | – |
SourceTexas Railroad Commission Wellbore Query, district 08, lease 51829.
Who buys and gathers
Who moves and buys this lease's production
Oil
Targa Midland LLC and Dk Trading & Supply, LLC gather it.
Targa Midland LLC gathers it: 95% of it, on the list since Oct 10, 2025 · Dk Trading & Supply, LLC gathers it: 5% of it, on the list since Oct 10, 2025
Gas from oil wells
Targa Midland LLC buys and gathers it.
Targa Midland LLC buys it: 100% of it, on the list since Oct 10, 2025 · Targa Midland LLC gathers it: 100% of it, on the list since Oct 10, 2025
Companies that used to be listed: Targa Midland LLC (gathers it, until Oct 10, 2025); Wtg Gas Processing, L.p. (gathers it, until Oct 10, 2025); Targa Midland LLC (buys it, until Oct 10, 2025); Wtg Gas Processing, L.p. (buys it, until Oct 10, 2025); Lion Oil Trading & Trans, LLC (gathers it, until Oct 10, 2025); Targa Midland LLC (gathers it, until Oct 10, 2025).
SourceRailroad Commission of Texas, Form P-4 file, dated Sep 24, 2026 (source). A listed company is authorised to move or buy the production; the state does not say what it paid.
Unit and wells
803.11 acres on the newest permit
- Wells on the permits
- 1111 not plugged
- Horizontal
- 11
- First completion
- Nov 21, 2018
- Latest permit
- Jan 12, 2022
11 wells are listed on this lease
Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-227-41524 | 8MH | Jan 12, 2022 | Apr 27, 2022 | 803.11 |
| 42-227-41159 | 6MH | Jun 18, 2021 | Oct 20, 2021 | 803.11 |
| 42-227-41160 | 6CH | Jun 18, 2021 | Oct 21, 2021 | 803.11 |
| 42-227-40434 | 5AH | Nov 15, 2019 | Mar 25, 2020 | 803.11 |
| 42-227-40435 | 5SH | Nov 15, 2019 | Feb 29, 2020 | 803.11 |
| 42-227-40436 | 5MH | Nov 15, 2019 | Mar 12, 2020 | 803.11 |
| 42-227-40182 | 6SH | May 28, 2019 | Oct 16, 2019 | 803.11 |
| 42-227-40183 | 6AH | May 28, 2019 | Oct 17, 2019 | 803.11 |
| 42-227-39822 | 7AH | Oct 25, 2018 | Jan 5, 2019 | 803.11 |
| 42-227-39823 | 7SH | Oct 18, 2018 | Dec 24, 2018 | 803.11 |
| 42-227-39655 | 8AH | Jun 7, 2018 | Nov 21, 2018 | 803.11 |
Estimator
Estimate your royalty for this lease
Estimator
What could your check be?
Your decimal interest is the small number on your division order that says what share of the whole lease (8/8ths) is yours. Type it in and we apply it to what the state says MONSTRO UNIT 04-16 sold each month.
For example 0.00097656, or a fraction like 1/1024.
Dollars per barrel. Your statements show the gap your operator uses. Leave 0 to price oil at WTI.
Your estimate appears here
An estimate, not your check
Ledger
36 months, newest first
| Month | Oil producedbbl | Oil soldbbl | Gas producedmcf | Gas soldmcf, codes 2+3 | Flaredmcf, code 4 | WTI$ per bbl | Henry Hub$ per MMBtu |
|---|---|---|---|---|---|---|---|
| Jul 2026Surge Operating, | 7,535 | 7,479 | 141,183 | 136,437 | 4,746 | $80.46 | $2.89 |
| Jun 2026Surge Operating, | 8,750 | 8,888 | 122,911 | 109,039 | 13,872 | $84.81 | $3.15 |
| May 2026Surge Operating, | 8,796 | 8,787 | 75,187 | 65,658 | 7,000 | $102.13 | $2.94 |
| Apr 2026Surge Operating, | 9,410 | 9,249 | 140,954 | 140,150 | 804 | $100.32 | $2.77 |
| Mar 2026Surge Operating, | 9,453 | 9,520 | 134,200 | 133,387 | 813 | $91.38 | $3.04 |
| Feb 2026Surge Operating, | 10,394 | 10,656 | 140,990 | 140,120 | 870 | $64.51 | $3.62 |
| Jan 2026Surge Operating, | 11,945 | 11,953 | 154,737 | 153,242 | 1,495 | $60.04 | $7.72 |
| Dec 2025Surge Operating, | 11,882 | 11,670 | 154,358 | 153,848 | 510 | $57.97 | $4.26 |
| Nov 2025Surge Operating, | 11,991 | 12,045 | 150,118 | 148,585 | 1,533 | $60.06 | $3.79 |
| Oct 2025Surge Operating, | 13,386 | 13,311 | 151,282 | 150,628 | 654 | $60.89 | $3.19 |
| Sep 2025Surge Operating, | 13,031 | 13,066 | 146,921 | 144,497 | 2,424 | $63.96 | $2.97 |
| Aug 2025Surge Operating, | 14,574 | 14,839 | 151,766 | 149,410 | 2,356 | $64.86 | $2.91 |
| Jul 2025Surge Operating, | 12,780 | 12,824 | 144,345 | 141,293 | 3,052 | $68.39 | $3.20 |
| Jun 2025Surge Operating, | 13,480 | 13,265 | 135,549 | 126,270 | 9,279 | $68.17 | $3.02 |
| May 2025Surge Operating, | 15,814 | 15,988 | 152,597 | 141,551 | 11,046 | $62.17 | $3.12 |
| Apr 2025Surge Operating, | 12,703 | 12,550 | 128,955 | 126,408 | 2,547 | $63.54 | $3.42 |
| Mar 2025Surge Operating, | 16,583 | 16,486 | 150,699 | 149,322 | 1,377 | $68.24 | $4.12 |
| Feb 2025Surge Operating, | 14,076 | 14,507 | 129,471 | 127,778 | 1,693 | $71.53 | $4.19 |
| Jan 2025Surge Operating, | 17,075 | 16,653 | 155,507 | 153,622 | 1,885 | $75.74 | $4.13 |
| Dec 2024Surge Operating, | 17,554 | 17,754 | 157,859 | 156,004 | 1,855 | $70.12 | $3.01 |
| Nov 2024Surge Operating, | 19,240 | 19,113 | 150,387 | 146,044 | 4,343 | $69.95 | $2.12 |
| Oct 2024Surge Operating, | 21,144 | 21,256 | 155,637 | 152,660 | 2,977 | $71.99 | $2.20 |
| Sep 2024Surge Operating, | 21,260 | 21,619 | 149,603 | 149,126 | 477 | $70.24 | $2.28 |
| Aug 2024Surge Operating, | 22,633 | 22,131 | 157,915 | 157,346 | 569 | $76.68 | $1.99 |
| Jul 2024Surge Operating, | 24,189 | 24,403 | 157,572 | 157,383 | 189 | $81.80 | $2.07 |
| Jun 2024Surge Operating, | 23,644 | 23,446 | 147,551 | 147,551 | 0 | $79.77 | $2.54 |
| May 2024Surge Operating, | 27,149 | 27,083 | 153,640 | 153,640 | 0 | $80.02 | $2.12 |
| Apr 2024Surge Operating, | 21,310 | 21,737 | 137,070 | 137,070 | 0 | $85.35 | $1.60 |
| Mar 2024Surge Operating, | 28,003 | 27,876 | 158,501 | 158,501 | 0 | $81.28 | $1.49 |
| Feb 2024Surge Operating, | 28,525 | 28,283 | 143,281 | 142,515 | 766 | $77.25 | $1.72 |
| Jan 2024Surge Operating, | 28,488 | 28,464 | 137,713 | 137,713 | 0 | $74.15 | $3.18 |
| Dec 2023Surge Operating, | 29,307 | 29,207 | 143,029 | 142,071 | 958 | $71.90 | $2.52 |
| Nov 2023Surge Operating, | 23,959 | 24,018 | 125,070 | 125,070 | 0 | $77.69 | $2.71 |
| Oct 2023Surge Operating, | 20,615 | 20,715 | 115,413 | 115,413 | 0 | $85.64 | $2.98 |
| Sep 2023Surge Operating, | 19,722 | 19,593 | 115,756 | 94,428 | 21,328 | $89.43 | $2.64 |
| Aug 2023Surge Operating, | 24,600 | 24,638 | 122,319 | 110,404 | 11,915 | $81.39 | $2.58 |
No report filed More than 3% of gas flared
SourceVolumes: Texas Railroad Commission Production Data Query, reported through Jul 2026. Prices: EIA WTI Cushing spot and Henry Hub spot, monthly, through Aug 2026. “Gas sold” is gas sent to a transmission line (code 2) or a plant (code 3).
Check your statements
Do your checks match this lease?
Upload your statements for MONSTRO UNIT 04-16. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Surge Operating, LLC.
- A month that was never paid
- Your share of the barrels and mcf
- The price against WTI and Henry Hub
- Fees taken on gas
- Late payment interest
Around this lease
Walk the neighborhood
This lease belongs to
Surge Operating, LLC in Howard County
- DIREWOLF UNIT 16-28
356,920 bbl last 12 months
- CHEVRON UNIT 03-56
340,609 bbl last 12 months
- CHEVRON UNIT 03-38
331,878 bbl last 12 months
- GRAYSTONE UNIT 39-26
293,386 bbl last 12 months
- WOLFE-BROPHY UNIT 45-04
243,859 bbl last 12 months
Spraberry (Trend Area) field
- FEE 'BP'
4,094,243 bbl last 12 months
- YELLOW BELLY
3,313,031 bbl last 12 months
- SOUTH CURTIS RANCH
2,812,875 bbl last 12 months
- FEE "BM"
3,039,124 bbl last 12 months
- SILVER BULLET
2,685,879 bbl last 12 months
Leases within 10 km
Found by the location of their wells.
- WOLFE-BROPHY UNIT 45-04
243,859 bbl last 12 months · 0 km away
- WOLFE-JONES UNIT A 04-09
92,240 bbl last 12 months · 0.9 km away
- WOLFE-MCCANN UNIT 10-15
28,584 bbl last 12 months · 0.9 km away
- EVANS-ANTELL UNIT B 46-03
79,663 bbl last 12 months · 1.3 km away
- EVANS 3
0 bbl last 12 months · 1.8 km away
Drilling permits within 10 km
NEWDGE A 06-43 #6NH
new drill · horizontal · Surge Operating, LLC · Howard County · 6.6 km away
Permit 0918747 · Sep 21, 2026
NEWDGE B 06-43 #7MH
new drill · horizontal · Surge Operating, LLC · Howard County · 6.6 km away
Permit 0918748 · Sep 21, 2026
MIDDLETON UNIT A 47-38 #2MH
new drill · horizontal · Surge Operating, LLC · Howard County · 4.6 km away
Permit 0918456 · Sep 11, 2026
MIDDLETON UNIT A 47-38 #3MH
new drill · horizontal · Surge Operating, LLC · Howard County · 4.6 km away
Permit 0918463 · Sep 11, 2026
MIDDLETON UNIT A 47-38 #3CH
new drill · horizontal · Surge Operating, LLC · Howard County · 4.6 km away
Permit 0918461 · Sep 11, 2026
How to read this page
Questions owners ask
What is a decimal interest?
It is your share of the whole lease, written as a decimal. A 1/4 royalty on 5 net acres in a 1,280-acre unit is 1/4 × 5 ÷ 1,280 = 0.00097656. Your division order states yours.
How do I use this page to check a royalty check?
Take the “Oil sold” volume for the month the check covers and multiply it by your decimal. The answer should match the barrels on your statement. If it does not, upload the statement and we will show where the two differ.
Why is the newest month Jul 2026?
The Railroad Commission publishes production two to three months after the fact and revises recent months. We re-pull the latest three months on every update.
Does this page show what my check should be?
No. It shows what the state recorded. Prices, fees and taxes depend on your lease and on what your operator gets for the oil and gas. The estimator gives a ceiling to compare against.
Sources and method
Where these numbers come from
- Production and disposition by month: Texas Railroad Commission Production Data Query, oil lease 51829, district 08, reported through Jul 2026.
- Wells: Texas Railroad Commission Wellbore Query.
- Prices: U.S. Energy Information Administration, WTI Cushing spot and Henry Hub spot, monthly.
- Page updated Sep 28, 2026.
We show the state’s numbers as filed. Where the state has no report for a month, we say so instead of guessing.