Texas oil lease
ProducingDCR 579
DCR 579 is an oil lease in Duval County, Texas, operated by Killam Oil Co., Ltd. in the Cedro Hill field.
1 well
- Operator
- Killam Oil Co., Ltd.
- County
- Duval County
- Field
- Cedro Hill
- RRC lease
- 04-14239
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Where it sits
This county
- Oil in Jul 2026
- 203 bbl
- Reporting since
- Apr 2024
Production by month
Oil output fell 18% over the last 12 months
- Oil (bars)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Where the gas went
No gas disposition reported for this lease
1 well on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-131-39684 | 1 | Active |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From |
|---|---|---|---|---|
| Gulfmark Energy, Inc. | Oil | Gathers | 100 | Apr 15, 2024 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
Estimate your royalty
28 months, newest first
| Month | Oil producedbbl | Oil soldbbl | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|
| Jul 2026 | 203 | 154 | $80.46 | $2.89 |
| Jun 2026 | 185 | 161 | $84.81 | $3.15 |
| May 2026 | 132 | 161 | $102.13 | $2.94 |
| Apr 2026 | 143 | 155 | $100.32 | $2.77 |
| Mar 2026 | 163 | 152 | $91.38 | $3.04 |
| Feb 2026 | 161 | 157 | $64.51 | $3.62 |
| Jan 2026 | 192 | 161 | $60.04 | $7.72 |
| Dec 2025 | 193 | 154 | $57.97 | $4.26 |
| Nov 2025 | 165 | 159 | $60.06 | $3.79 |
| Oct 2025 | 197 | 313 | $60.89 | $3.19 |
| Sep 2025 | 204 | 160 | $63.96 | $2.97 |
| Aug 2025 | 181 | 155 | $64.86 | $2.91 |
| Jul 2025 | 231 | 317 | $68.39 | $3.20 |
| Jun 2025 | 202 | 161 | $68.17 | $3.02 |
| May 2025 | 202 | 153 | $62.17 | $3.12 |
| Apr 2025 | 187 | 310 | $63.54 | $3.42 |
| Mar 2025 | 276 | 155 | $68.24 | $4.12 |
| Feb 2025 | 221 | 307 | $71.53 | $4.19 |
| Jan 2025 | 251 | 156 | $75.74 | $4.13 |
| Dec 2024 | 201 | 161 | $70.12 | $3.01 |
| Nov 2024 | 235 | 315 | $69.95 | $2.12 |
| Oct 2024 | 251 | 316 | $71.99 | $2.20 |
| Sep 2024 | 163 | 161 | $70.24 | $2.28 |
| Aug 2024 | 163 | 160 | $76.68 | $1.99 |
| Jul 2024 | 116 | 160 | $81.80 | $2.07 |
| Jun 2024 | 0 | 0 | $79.77 | $2.54 |
| May 2024 | 148 | 0 | $80.02 | $2.12 |
| Apr 2024 | 86 | 0 | $85.35 | $1.60 |
SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.
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Nearby
This lease belongs to
Killam Oil Co., Ltd. in Duval County
- KILLAM "257"
2,722 bbl
- DCR 152A
2,679 bbl
- KILLAM MINERAL FEE SECT. 189 "B"
2,621 bbl
- DCR 152A
2,229 bbl
- KILLAM MINERAL FEE SECT. 189 "A"
2,040 bbl
- DUVAL COUNTY RANCH CO. STATE "V"
1,757 bbl
- DUVAL RANCH, SEC. #203
1,655 bbl
- KILLAM
1,611 bbl
- DUVAL RANCH 79 COLE -C- UNIT
1,329 bbl
- DUVAL RANCH SEC. 203
1,254 bbl
Cedro Hill field
- KILLAM MINERAL FEE SECT. 189 "B"
2,621 bbl
- KILLAM MINERAL FEE SECT. 189 "A"
2,040 bbl
- KILLAM MINERAL FEE SECT. 132 "A"
1,253 bbl
Leases within 10 km
- DUVAL CO. RANCH CO. -D-
1,226 bbl · 1 km
- DUVAL CO. RANCH CO.-STATE -L-
980 bbl · 1.3 km
- DUVAL COUNTY RANCH CO.-STATE -F-
929 bbl · 1.6 km
- DUVAL COUNTY RANCH CO., -G-
0 mcf · 1.8 km
- KILLAM MINERAL FEE SECT. 132 "A"
1,253 bbl · 1.9 km
- DUVAL COUNTY RANCH 578
35,139 mcf · 2.3 km
- DUVAL COUNTY RANCH 578
410 bbl · 2.4 km
- D.C.R.C. SECTION 55
3,734 bbl · 2.7 km
- DUVAL RANCH SEC. 578
475 bbl · 3 km
- WEIL -C-
1,963 bbl · 3.2 km
Drilling permits within 10 km
WHITE, P. E. -B- #148
recompletion · Killam Oil Co., Ltd. · Duval County · 7.5 km
Permit 0909552 · Jul 30, 2025
KILLAM FREER RANCH '196' #15
new drill · Killam Oil Co., Ltd. · Duval County · 6.1 km
Permit 0897715 · Mar 4, 2024
DCR 51 #1
new drill · Killam Oil Co., Ltd. · Duval County · 3.5 km
Permit 0896396 · Jan 9, 2024
DCR 590 #2
new drill · Killam Oil Co., Ltd. · Duval County · 5 km
Permit 0895105 · Nov 14, 2023
DCR 590 #3
new drill · Killam Oil Co., Ltd. · Duval County · 5.4 km
Permit 0894622 · Oct 24, 2023