GREYSTOKE 1-5 C
RRC oil lease 64851, district 10 · SPRABERRY (TREND AREA) field · Martin County · operated by DIAMONDBACK E&P LLC
GREYSTOKE 1-5 C at a glance
It has no production a year earlier to compare with. Over the last 12 months it reported 217,801 BBL of oil and 270,130 MCF of gas. In May 2026, the latest month not marked provisional, it reported 53,953 BBL and 57,457 MCF.
Royalty = (53,953 BBL × $97.31 WTI, Sep 2026, EIA + 57,457 MCF × $2.95 Henry Hub, Sep 2026, EIA) × your decimal. 0.001 is only a placeholder: enter the decimal from your check stub or division order. Gross, before taxes and deductions. Full estimator →
Oil + condensate (BBL per month, last 36 months)
Gas (MCF per month, last 36 months)
Jun 2026 and Jul 2026 are provisional (lighter bars) and usually rise as late reports arrive.
GREYSTOKE 1-5 C production history in brief
By oil-equivalent volume over the last 12 months, GREYSTOKE 1-5 C ranks #314 of 5,078 reporting leases in Martin County. It reported production in 3 of the 34 non-provisional months shown, starting in our window in Mar 2026. Its peak oil month in that window was May 2026 at 53,953 BBL. The lease is in the SPRABERRY (TREND AREA) field and is operated by DIAMONDBACK E&P LLC; production is reported for the lease as a whole, not per well.
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New permits nearby
New drilling permits issued this month in Martin County. RRC production data has no lease coordinates, so we match by county.
| Issued | Operator | Lease | Well | Depth (ft) |
|---|---|---|---|---|
| 2026-10-14 | DIAMONDBACK E&P LLC | TATE 11-10 A | 1JM | 9,700 |
| 2026-10-14 | DIAMONDBACK E&P LLC | TATE 11-10 A | 1LS | 9,700 |
| 2026-10-14 | DIAMONDBACK E&P LLC | TATE 11-10 B | 1WB | 9,700 |
| 2026-10-14 | DIAMONDBACK E&P LLC | TATE 11-10 C | 1DN | 9,700 |
| 2026-10-14 | DIAMONDBACK E&P LLC | TATE 11-10 D | 1MS | 9,700 |
| 2026-10-14 | DIAMONDBACK E&P LLC | TATE 11-10 E | 2LS | 9,700 |
| 2026-10-14 | DIAMONDBACK E&P LLC | TATE 11-10 F | 2JM | 9,700 |
| 2026-10-14 | DIAMONDBACK E&P LLC | TATE 11-10 F | 2WB | 9,700 |
| 2026-10-14 | DIAMONDBACK E&P LLC | TATE 11-10 G | 2DN | 9,700 |
| 2026-10-14 | DIAMONDBACK E&P LLC | TATE 11-10 I | 3JM | 11,000 |
Monthly production
| Month | Oil (BBL) | Gas (MCF) |
|---|---|---|
| Jul 2026 (provisional) | 37,376 | 74,475 |
| Jun 2026 (provisional) | 43,526 | 67,908 |
| May 2026 | 53,953 | 57,457 |
| Apr 2026 | 52,566 | 45,734 |
| Mar 2026 | 30,380 | 24,556 |
| Feb 2026 | 0 | 0 |
| Jan 2026 | 0 | 0 |
| Dec 2025 | 0 | 0 |
Check these figures in the RRC Production Data Query (Specific Lease Query: district 10, lease 64851). Production is reported per lease, so a lease with several wells is not split by well.
Source: Texas Railroad Commission (data sets, Production Data Query). Data date: RRC Production Data Query dump, extract dated Sep 18, 2026; production through Jul 2026. Jun 2026 and Jul 2026 are provisional: operators file late and amend, so these months usually rise in later releases. Oil = crude oil + condensate (BBL); gas = gas-well gas + casinghead gas (MCF), as reported to RRC. Methodology.