A total of 498 operators were identified that manage at least one unplugged well; 261 of them (52%) did not report oil production volumes in 2022.
Key Findings
Less than 3% of operators (14) produced an average of 10 or more barrels per day (BOE/D), per well. Those 14 operators manage just 43 oil wells in total.
Statewide daily average per-well production volumes were 3.3 BOE/D, which is enough to fill the fuel tank of only 10 Toyota Camrys.
None of the state’s top 20 producers are producing more than 10 BOE/D per well, while the majority produce 3 BOE/D or less.
Chevron U.S.A. Inc. currently operates 26,243 unplugged wells, the most of any California operator, while 8,886 are currently idle.
In 2022, Chevron only produced an average of about 3.1 BOE/D per well for their entire portfolio of unplugged wells.
According to the calculated average daily per-well production index, Aera Energy LLC, California’s largest oil producer which was just divested by ExxonMobil and Shell, ranked 68th, indicating low average per well production volumes compared to their currently unplugged well portfolio.
Chevron ranked 78th indicating very low average daily per-well production volumes, particularly when compared to their currently unplugged well portfolio.
California Resources Corporation LLC ranked 88th, while its subsidiaries ranked 15th (Thums Long Beach), 28th (Tidelands), and 77th (CRC Elk Hills).
Overview
This report focuses on the productivity of California’s remaining oil reserves ranks California operators based on average daily per-well production volumes, an industry index that measures the health of oil and gas extraction operations. The results show that while there are a handful of oil and gas operators that continue to produce profitable volumes of oil, the majority of California operators, including the state’s oil and gas major corporations, Chevron, Aera Energy, and California Resources Corporation, are producing very low average volumes of oil per well.
While Chevron and other multinational oil and gas majors operating in California are reporting record profits, they have ignored the obligations to plug and remediate their backlog of idle wells in the state. Shell and Exxon, previous owners of the largest California operator Aera Energy divested entirely from California without plugging over 9,000 idle wells (nearly 40% of their total portfolio of unplugged wells). In total there are over 101,000 unplugged wells in the state. About 62,000 of those wells are active, and another 40,000 are idle, no longer operational.
This report shows that, while California operators maintain high counts of unplugged wells, average daily per-well production volumes are well below marginal levels. Previous research has shown that these marginal levels are not likely enough to even cover well plugging and reclamation costs. Additionally, consistent declines in per-well production volumes were documented for the majority of California operators over multiple years. When these operators divest from California or choose bankruptcy rather than covering these debts, California taxpayers will be left responsible for the plugging and clean up costs. California’s current system of idle well management has not been effective, and is in desperate need of immediate revision.
Industry Index Indicates Need to Plug Wells Now
Production from California oil reserves has been on the decline for the last four decades, and current production figures show that the operators in the state are likely nearing the end of their ability to profitably extract oil. While operators such as Chevron U.S.A. Inc are blaming California regulatory policies for major profit write downs, the data shows that it is more likely that these operators depleted their California reserves to the point that remaining rates of production will no longer be profitable. If California operators are not required to increase their rates of well plugging, California taxpayers are at a greater risk of covering the growing costs when the current operators divest or turn to bankruptcy. While California does have a joint and several liability law for oil and gas operations, allowing the state to sue previous operators for clean-up costs, creating a responsible regulatory framework to prevent operators from orphaning wells will reduce the need for California to pursue reimbursements via drawn-out litigative actions. Furthermore attempts to collect costs from bankrupt LLC’s have come up substantially short; the California oil and gas operator Chevron U.S.A. Inc. is itself a subsidiary of parent company Chevron Corp..
As the ultimate debt holder for the contingent liabilities of California’s oil and gas well portfolio, the state of California must protect the economic interests of Californians and take responsibility for requiring California operators to plug all non-producing wells. Table 1 below shows counts of unplugged wells and breaks down the total count by operational statuses for the 20 California operators with the highest counts. In total there are over 135,000 plugged and about 101,000 unplugged (61,000 operational and 40,000 idle) wells in California. While the immediate concerns for financial solvency are focused on plugging the backlog of idle wells in the state, it is important to acknowledge that each plugged well will require maintenance and monitoring in perpetuity, plus replugging operations in the future, at a managerial cost that will continue to grow at a compounded inflation rate.
Note the high counts of idle wells managed by each operator. Aera has the highest count, with over 9,000, and Chevron has the second highest count, with just under 9,000. One third of their unplugged wells are idle and should be plugged immediately. Over half of California Resources Corp.’s operational wells are idle. This is a result of irresponsible management by state regulators and a favorable regulatory landscape that has failed to prioritize debt management and environmental reclamation. Other oil and gas states such as North Dakota require operators to plug wells within one year of ending production, in order to prevent the buildup of such economic risk and environmental degradation. Without such protections and forward looking regulatory policies, California taxpayers will actually be left to pay for the billions of dollars of cleanup.
Average Daily Per-Well Production Index
This new analysis by FracTracker Alliance uses California oil and gas production data published by the California Department of Geological Energy Management (CalGEM) to rank California operators based on the productive health of their operations. The tables below compare California oil and gas operators based on the calculated index, average daily per-well production (BOE/D). This index is used within the regulatory and investment sectors of the oil and gas industry to assess the health and profitability of extraction operations. The index was calculated for each California operator by dividing the total barrels per day (BOE/D) produced by the operator (calculated from annual production records), by the year-end count of unplugged wells owned by each operator.
(Average BOE/D Per−Well Production) = ([Total Annual Production (BOE)/365 days] / [Count of unplugged wells])
This analysis was conducted for the years 2019-2022 using California Department of Geological Energy Management (CalGEM) public data. Data for 2023 was not yet available in a complete and vetted dataset. The analysis was conducted using the programming language Python (V3.9.12). The Python code and datasets can be found in the Appendix (FracTracker data repository), which includes the full dataset that the following tables are derived from. The tables below summarize the results for the year 2022. The map below also shows summed production data for all unplugged wells for the year 2022. A darker color represents higher annual production volumes from that unplugged well. The ranks of the 20 largest California operators are shown below in Table 2.
California Daily Oil Production 2022
This interactive map looks at 2022 oil production volumes from California’s operational (Active, Idle, and New) oil and gas wells.
View the map “Details” tab below in the top right corner to learn more and access the data, or click on the map to explore the dynamic version of this data. Data sources are also listed at the end of this article. In order to turn layers on and off in the map, use the Layers dropdown menu. This tool is only available in Full Screen view. Items will activate in this map dependent on the level of zoom in or out.
View Full Size Map | Updated 1/29/2024 | Map Tutorial
California’s Oil Majors
While Chevron was the second largest oil producer in the state, Chevron also operated the most unplugged wells of any California operator in 2022, with 26,502 unplugged wells. The most up to date data (1/20/24) puts their unplugged well count at 26,244. While the operator has claimed to have plugged over 2,200 wells over the course of the last year,state records do not support this claim. CalGEM does not keep track of well plugging counts, and the existing CalGEM data shows this to not be likely.
Chevron only produced a daily per-well average of about 3 BOE/D for their entire portfolio of unplugged wells in California, ranking them 78th among the 261 California operators that reported production in 2022 (77th percentile). Compared to other California oil and gas majors, Chevron’s 2022 daily per-well production averages were about 15% below that of Aera Energy (Rank 68th; 82nd percentile), when Shell and Exxon sold Aera to divest from California oil and gas operations. Half of domestic oil and gas production between 2012 and 2022 came from wells that produced between 100 and 3,200 barrels per day, according to the Energy Information Administration. An onshore well that produces between 1,000 and 3,000 barrels of oil a day is considered a good production range. Almost all of of California’s oil wells produce marginal levels, much lower than even the cut-off for stripper wells, of 15 BOE/D.
Additional data on Chevron’s recent investments and divestments show that Chevron’s California operations are performing at comparatively poor levels as compared to their operations in other states. Prime examples are the case of Chevron acquiring Denver-Julesburg based operator Noble Energy in 2020 for $13 billion, which has a per-well oil production average volume of 36 BOE/D, and alternatively the case of Chevron’s recent divestment of oil wells in the Piceance Basin to Scout Energy, which at the time were producing a per-well oil production average volume of 14 BOE/D.
The analysis was completed for not just 2022, but the entire four year period 2019-2022, the results of which can be found in the Appendix (FracTracker Data Repository). The data shows consistent production declines in per-well production volumes for the majority of California oil majors over the course of this four year period, which continues the trend of decline since peak oil, four decades ago. The data shows that in 2022, average statewide daily per-well production equaled 3.3 BOE/D, while 88% of California operators with unplugged wells produced less than an average 4 BOE/D per well. Of note 2 BOE/D is considered a hard line in the industry for an oil well to just cover operational costs. Oil prices would have to remain over $130 per barrel for a well producing 4 BOE/D to cover just its own plugging and reclamation costs, whereas the average price for oil since 2019 has been about half that amount ($68 per barrel).
Conclusions
According to California state regulators there are over 101,000 unplugged wells in the state. About 62,000 of those wells are operational, and another 40,000 are idle (over 5,000 likely orphaned), no longer operational. While idle wells should be plugged immediately to reduce current environmental health risks, California oil companies and regulators have ignored this obligation. The current system in California is failing to manage California’s backlog of idle wells. Regulators and policy-makers must create a system for managing the retirement of producing wells that requires strict plugging deadlines, such as regulations that have been instituted in North Dakota, West Virginia and other states.
Furthermore, there is a great deal of evidence to show that the remaining operational oil and gas wells in the state will not produce enough oil to cover the costs of plugging, reclamation, and remediation. This new data analysis, combined with the previous analyses by FracTracker showing increasing divestment by larger California oil and gas operators and Carbon Tracker’s “There Will be Blood” report, show that California oil and gas extraction is at the tail end or already beyond the limits of profitability for the majority of operators. Adding additional pressure to the balance sheet of Chevron and other majors is the fact that depleted offshore reserves in additional geographies are also requiring these multinational companies to spend capital on remediation, while onshore remediation obligations grow. While development of unconventional oil and gas reserves has lengthened the lifespan of hydrocarbon companies, additional impending plugging, reclamation, and remediation debts will be increasingly coming to term, leading to additional future financial losses. California must be prepared.
References & Where to Learn More
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