Monterey County, California
Monterey County, California produced 3.0 MMbbl of oil and 550 MMcf of natural gas in 2025. 648 producing wells tracked, 12 months to Apr 2026.
- Fifth-largest oil-producing county in California, 2025.
- 2.9% of the oil produced in California, 2025.
- Oil production fell 18% in 2025 from 2024.
Production
- filling in (est. · unconfirmed) . Hatching marks our estimate of the volume still to be filed. That estimate draws on our own production forecast. This estimate is published unconfirmed. It updates as filings arrive
- estimated . Hatching marks our estimate. In the most recent months that is volume still to be filed. Past the divider it is our estimate of each whole month, built on any filings already in. Beyond the last filings it is our forecast.
In this view, hatching marks our estimate, and in the most recent months that is volume still to be filed. Past the divider, the chart continues only the bands it has drawn. Each band continues as our estimate, from any filings already in and then from our forecast, built by summing our per-well forecasts. The method behind each well is recorded with the forecast. The forward months cover existing wells only. How our methods work
All from what the source published. All held at well grain.
How the volume breaks down
- 93.0% Reported by the official source by well
- 7.0% Published by the official source as its own estimate rather than an operator-attested figure
Every barrel through April 2026 starts from what the official source published for those months. Measured over January 1970 to April 2026.
- filling in (est. · unconfirmed) . Hatching marks our estimate of the volume still to be filed. That estimate draws on our own production forecast. This estimate is published unconfirmed. It updates as filings arrive
- estimated . Hatching marks our estimate. In the most recent months that is volume still to be filed. Past the divider it is our estimate of each whole month, built on any filings already in. Beyond the last filings it is our forecast.
In this view, hatching marks our estimate, and in the most recent months that is volume still to be filed. Past the divider, the chart continues only the bands it has drawn. Each band continues as our estimate, from any filings already in and then from our forecast, built by summing our per-well forecasts. The method behind each well is recorded with the forecast. The forward months cover existing wells only. How our methods work
All from what the source published. All held at well grain.
How the volume breaks down
- 89.9% Reported by the official source by well
- 10.1% Published by the official source as its own estimate rather than an operator-attested figure
Every cubic foot through April 2026 starts from what the official source published for those months. Measured over January 1970 to April 2026.
The bands group wells by when they first produced.
About this chart
The stack shows what is holding today's rate up and how much of it is new drilling. In the reported months the bands draw the filings already in. The months still filling in are marked.
Annual table (full history)
best estimate incl. source-estimated
| Year | Oil (MMbbl) | Gas produced (Bcf) |
|---|---|---|
| 2025 | 3.0 | 1 |
| 2024 | 3.7 | 1 |
| 2023 | 4.1 | 1 |
| 2022 | 5.1 | 1 |
| 2021 | 6.0 | 1 |
| 2020 | 7.5 | 1 |
| 2019 | 8.5 | 1 |
| 2018 | 8.6 | 1 |
| 2017 | 7.5 | 1 |
| 2016 | 8.2 | 1 |
| 2015 | 8.1 | 1 |
| 2014 | 8.0 | 1 |
| 2013 | 7.4 | 1 |
| 2012 | 7.4 | 1 |
| 2011 | 7.1 | 1 |
| 2010 | 6.2 | 2 |
| 2009 | 5.4 | 1 |
| 2008 | 4.3 | 1 |
| 2007 | 3.6 | <1 |
| 2006 | 3.2 | <1 |
| 2005 | 3.6 | <1 |
| 2004 | 4.0 | <1 |
| 2003 | 4.5 | <1 |
| 2002 | 4.7 | <1 |
| 2001 | 4.7 | <1 |
| 2000 | 4.8 | <1 |
| 1999 | 4.2 | <1 |
| 1998 | 4.5 | <1 |
| 1997 | 4.7 | <1 |
| 1996 | 4.6 | <1 |
| 1995 | 4.3 | <1 |
| 1994 | 4.9 | 1 |
| 1993 | 4.7 | 2 |
| 1992 | 4.3 | 1 |
| 1991 | 3.8 | <1 |
| 1990 | 4.1 | <1 |
| 1989 | 3.9 | <1 |
| 1988 | 4.7 | <1 |
| 1987 | 5.0 | <1 |
| 1986 | 6.9 | <1 |
| 1985 | 8.2 | 0 |
| 1984 | 7.7 | 0 |
| 1983 | 8.1 | 0 |
| 1982 | 9.4 | 0 |
| 1981 | 10.2 | 0 |
| 1980 | 10.7 | <1 |
| 1979 | 10.8 | 0 |
| 1978 | 11.5 | <1 |
| 1977 | 12.8 | 0 |
| 1976 | 2.6 | 0 |
| 1975 | 2.6 | 0 |
| 1974 | 2.1 | 0 |
| 1973 | 1.9 | 0 |
| 1972 | 1.3 | 0 |
| 1971 | 1.0 | 0 |
| 1970 | 0.2 | 0 |
Source: CommoVision (commovision.com)
Monthly table (last 24 months)
| Month | Oil (Mbbl) | Gas produced (MMcf) |
|---|---|---|
| 2026-04 | 152.5 | 38 |
| 2026-03 | 157.9 | 48 |
| 2026-02 | 133.9 | 39 |
| 2026-01 | 135.3 | 33 |
| 2025-12 | 226.6 | 39 |
| 2025-11 | 228.2 | 43 |
| 2025-10 | 242.5 | 49 |
| 2025-09 | 247.0 | 40 |
| 2025-08 | 258.4 | 49 |
| 2025-07 | 260.9 | 45 |
| 2025-06 | 256.2 | 44 |
| 2025-05 | 258.5 | 48 |
| 2025-04 | 259.0 | 45 |
| 2025-03 | 269.0 | 51 |
| 2025-02 | 257.4 | 46 |
| 2025-01 | 282.3 | 52 |
| 2024-12 | 293.8 | 61 |
| 2024-11 | 284.7 | 53 |
| 2024-10 | 286.6 | 56 |
| 2024-09 | 300.1 | 52 |
| 2024-08 | 307.9 | 55 |
| 2024-07 | 310.7 | 58 |
| 2024-06 | 300.1 | 58 |
| 2024-05 | 314.3 | 58 |
Source: CommoVision (commovision.com)
Source: CommoVision · Monterey County, California, data through July 2026.
Well map
- Oil 2,876
- Natural gas 1
- Undetermined 1,001
About this map
Undetermined means not enough signal to settle it. Producing wells are the ones that reported oil or gas in the 12 months to Apr 2026.
Top operators in Monterey County, California, 2025 best estimate incl. source-estimated
Top operators in Monterey County, California, 2025: full table
| Operator | Oil (Mbbl/d, 2025) | Gas produced (MMcf/d, 2025) | Share of output |
|---|---|---|---|
| Chevron | 4.6 | 0.7 | 54.9% |
| California Resources Corporation | 3.5 | 0.8 | 42.6% |
| Calnrg Operating, LLC | 0.1 | 0.0 | 1.4% |
| NY Oil, Inc. | 0.1 | 0.0 | 0.6% |
| Pacific Coast Energy Company LP | 0.0 | 0.0 | 0.3% |
| Reabold California | 0.0 | 0.0 | 0.2% |
Mbbl/d = thousand barrels per day · MMcf/d = million cubic feet per day (units).
Source: CommoVision (commovision.com)
Active drilling rigs
Interactive chart. Focus it and use the left and right arrow keys to read each week, Page Up and Page Down to move a year, Home and End for the ends of the series. The full figures are also in the table below.
- In Monterey County, California, 0 drilling rigs were active in the week to September 11, 2026 (unchanged from a year earlier).
- Since Sep 2016, the weekly count peaked at 1 in Feb 2021.
- The count covers land and inland-water rigs; rigs in US federal offshore waters are counted on the Gulf of Mexico page.
Average active rigs per month: full table
| Month | Oil-directed | All rigs |
|---|---|---|
| Sep 2026 (through September 11, 2026) | 0 | 0 |
| Aug 2026 | 0 | 0 |
| Jul 2026 | 0 | 0 |
| Jun 2026 | 0 | 0 |
| May 2026 | 0 | 0 |
| Apr 2026 | 0 | 0 |
| Mar 2026 | 0 | 0 |
| Feb 2026 | 0 | 0 |
| Jan 2026 | 0 | 0 |
| Dec 2025 | 0 | 0 |
| Nov 2025 | 0 | 0 |
| Oct 2025 | 0 | 0 |
| Sep 2025 | 0 | 0 |
| Aug 2025 | 0 | 0 |
| Jul 2025 | 0 | 0 |
| Jun 2025 | 0 | 0 |
| May 2025 | 0 | 0 |
| Apr 2025 | 0 | 0 |
| Mar 2025 | 0 | 0 |
| Feb 2025 | 0 | 0 |
| Jan 2025 | 0 | 0 |
| Dec 2024 | 0 | 0 |
| Nov 2024 | 0 | 0 |
| Oct 2024 | 0 | 0 |
Source: CommoVision (commovision.com)
What we cover here
Each row names the grain a region’s production is held at. Where a source publishes at a coarser grain, the page says so.
| Data | Grain | Since | Benchmark |
|---|---|---|---|
| California production | well | 1944-03 | ~98–101% of EIA |
Benchmark cells compare our series with the EIA’s published estimates.
About the EIA comparison
The two are produced differently: the EIA estimates from a survey of the largest operators and a model built to anticipate late filings, while the series compared here are rebuilt from the source’s own records as they arrive. Recent months can differ without either being wrong; the methodology page explains both methods.
Coverage rows for Monterey County, California are regenerated at every build from the same catalog of sources the data is built from.
What the data shows
- Monterey County, California produced 3.0 MMbbl of oil and 550 MMcf of natural gas in 2025.
- Monterey County, California oil production peaked in 1977 at 12.8 MMbbl; 2025 output of 3.0 MMbbl ran at 24% of that peak.
- 648 producing wells tracked, 12 months to Apr 2026.
Get early access
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