42-201-00173
Final CompletionREID JOHN D.
HARRIS County · District 3 · TANDEM ENERGY CORPORATION · TOMBALL (SCHULTZ SE.)
Permits
1
Max Depth
5,547 ft
First Permit
1982-07-20
Latest Activity
1982-07-20
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: TANDEM ENERGY CORPORATION ≠ Permit: EXXON CORP.
Resolved via: scheduling → TANDEM ENERGY CORPORATION
Production Summary Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil
— bbl
Cum Gas
— mcf
First Production
1993-01
Last Production
2026-07
Injection / Disposal
Permitted Volume
20,000 bbl/d
Max Pressure
1,100 psi
Injection Interval
2,400–4,859 ft
Injected (12mo)
1,095,149 bbl
Permitted Volume
20,000 bbl/d
Max Pressure
1,100 psi
Injection Interval
2,400–4,859 ft
Injected (12mo)
1,095,149 bbl
Monthly injected volume (bbl, from H-10 filings through 2025-09-01)
Operator History
originally filed by EXXON CORP. — asset transferred
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (2) Elevation 159 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MIOCENE (Miocene (undifferentiated)) | 2,205 ft | -2,046 ft |
| JACKSON | 4,400 ft | -4,241 ft |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗
Perforations (1)
| Interval | Type |
|---|---|
| 3,370–3,400 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 942 ft | 289 sx |
| 9.625" | 942 ft | 289 sx |
| 2.875" | 3,273 ft | — |
| 5.5" | 5,542 ft | 189 sx |
Permit History (1)
Applications (1)
Records & Logs
9 completion filings on record.
+3 more filings
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 509 D
- Max Depth
- 5,547 ft
- Drill Type
- Vertical
- County
- HARRIS
- District
- 3
- Operator
- TANDEM ENERGY CORPORATION
Operator
- Name
- TANDEM ENGY CORP
- Location
- HOUSTON
- P-5 Status
- Active (filed 2025-07-10)
- Cum Oil (all leases)
- 3,731,968 bbl
- Cum Gas (all leases)
- 10,685,287 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 138