Water, Chevron recognizes the importance of biodiversity conservation Water, Chevron recognizes the importance of biodiversity conservation


Biodiversity is the variation in living things in different regions on Earth, including the ecosystems and ecological processes that support them. Maintaining global biodiversity is a prominent and widespread public issue.

Chevron recognizes the importance of protecting and conserving a region’s biodiversity, and we have a long history of collaborating with communities, industry groups, regulators and conservation groups to identify and protect biodiversity in parts of the world where we operate. We also work to protect biodiversity through our operating practices and innovative solutions. This includes investing in scientific research and development to improve data quality and identify new technologies to manage biodiversity.


Protecting the safety and health of people and the environment is a Chevron core value. Therefore, we:

  • Strive to design our facilities and conduct our operations to avoid potential adverse impacts to human health and to operate in an environmentally sound, reliable and efficient manner.
  • Conduct our operations responsibly in all areas, which includes environments with sensitive biological characteristics.


We strive to avoid and reduce significant impacts our projects and operations may have on sensitive species, habitats and ecosystems. This means that we:

  • Integrate biodiversity into our business decision-making and management through our Operational Excellence Management System (OEMS).
  • Our Environment Risk Management Process, under our Operational Excellence Management System, is designed to operationalize a risk-based approach to identify, assess and manage potential risks to the environment across the lifecycle of our assets, including those related to biodiversity.
  • Understand that humans and the natural environment interact with each other in various ways. We consider those interrelationships and the functions that ecosystems perform in supporting sustainable economic development.
  • Recognize that our activities could affect sensitive and valuable biodiversity inside and outside legally designated protected areas. Therefore, we:
    • Decide whether and how to operate in a protected or sensitive area, based on consideration of the specific circumstances of the area and operation involved.
    • Operate in such areas with government legal authorization when required and where we are confident we can comply with all regulatory requirements and use operating practices appropriately protective of the area.
    • Use our OEMS processes to avoid or reduce potential risks of our operations to sensitive biological resources and seek ways to make positive contributions to biodiversity conservation in the area.

biodiversity research

As a member of the Influence of Structures In The Ecosystem (INSITE) program, Chevron has contributed to building a legacy of scientific investigation into the potential influence of marine structures on the ecosystem. INSITE is a public/private partnership with the U.K. government, academia and industry that leads research projects and a Ph.D. scholarship program. The objective is to provide stakeholders with independent science-based studies to better understand the influence of human-made structures on the ecosystem of the North Sea.

communication and engagement

For example, Chevron has been a member of global not-for-profit oil and gas industry association, Ipieca, since the late 1970s. We contribute technical expertise and participate in their Biodiversity and Ecosystem Services Work Group and task forces for Nature Positive, Nature Related Disclosure and Reporting and Nature Based Solutions. In 2022, our technical experts supported the updated Guide to Developing Biodiversity Action Plans and participated as one of Ipieca’s delegates in the 15th meeting of the UN Convention on Biological Diversity (COP15) in Montreal, Canada. Our communication and engagement efforts also include:

  • Communicating about our biodiversity-related activities to employees and outside audiences, for example, through our Corporate Sustainability Report.
  • Engaging with government, local communities and others to understand and work to address significant biodiversity issues in areas where we operate.
  • Participating in industry associations and other forums to share and promote best practices for biodiversity conservation.
  • Seeking to understand and, where appropriate, participating in development of external policy-making activities that affect our operations, such as those adopted under the U.N. Convention on Biological Diversity and national, regional and local biodiversity policies and plans.
  • Working with a variety of external organizations to make positive contributions to biodiversity conservation globally and in areas where we operate.

innovative solutions to protect biodiversity

We invest in scientific research and develop and implement new technologies to manage biodiversity on and surrounding our assets.

We began trials on four solar-powered mobile lighting towers in 2020 at our Gorgon operations in Australia. Solar-powered lights remove or reduce many of the environmental impacts of diesel-powered lights, such as noise, odors, vibration and carbon emissions. The solar-powered LED lights maintain wavelengths at 590 nanometers, ideal for reducing impacts to turtle hatchlings and other nocturnal fauna, which tend to be less attracted to this wavelength. Based on the success of the trials, Chevron has leased an additional 27 units, for use in Australia, and is evaluating for wider use in our global efforts to monitor and prevent impacts to biodiversity.

Chevron’s Mustang comprehensive drilling plan (CDP) covers nearly 100 square miles in northern Colorado. It was the first CDP approved by the Colorado Oil and Gas Conservation Commission (COGCC). Colorado Parks and Wildlife designated some of the Mustang area as high-priority habitat for Eastern Plains native fish, nesting areas for hawks and bald eagles, and winter rangeland for pronghorn and mule deer. This designation led Chevron to develop the area in a way that avoided identified nesting sites and wetland areas. By reducing or avoiding development in floodplains and wetlands, we seek to maintain the ecosystem support that a floodplain and associated wetlands provide, including water flow regulation and flood attenuation, water quality improvement, and other ecological functions that enhance biodiversity.
Chevron Thailand worked to transform seven platform jackets into an artificial reef spanning over 1,600 feet. Creation of the artificial reefs enabled Chevron not only to reduce asset retirement costs, but also to provide habitat for marine life and recreational diving opportunities, benefiting local fishers and communities and enabling scientists to further study artificial reef science and the value of such infrastructure in the Gulf of Thailand. Today, Chevron is working with Chulalongkorn University in Thailand and Curtin University in Australia to monitor the artificial reef over a three-year period, examining fish, benthic communities, sediment, plankton, and a range of water quality aspects and overall ecosystem value. In collaboration with the Scottish Association of Marine Science, we piloted a new technology in 2021, Structure from Motion 3D Photogrammetry, to collect and analyze video images from the artificial reef. The technology integrated the video images into geospatial software to create a 3D computer model that was analyzed to quantify 3D ecological characteristics of marine growth on the reef site.
Through our membership in the United Nations World Conservation Monitoring Centre Proteus Partnership, Chevron contributes to the development of the World Database on Protected Areas, which is now included as a key component of the Integrated Biodiversity Assessment Tool (IBAT). We utilize information from the IBAT to screen projects for proximity to the International Union for Conservation of Nature (IUCN) Protected Management Area Categories I–IV, the IUCN red list of threatened and endangered species, and the World Database of Key Biodiversity Areas. Access to this data in the early stages of project planning helps us utilize our Protective by Design concept and apply the mitigation hierarchy. Screening of our 2022 portfolio identifies no upstream onshore operating sites in IUCN I–IV areas, except for Barrow Island, Australia. There, we have a long history of operating within an Australia-designated Class A nature reserve (IUCN category Ia – strict nature reserve). Through the exclusion of invasive species on Barrow Island, our environmental stewardship has contributed to the conservation of rare and threatened species.

For more than 15 years, Chevron has worked with Conservation Volunteers Australia, and in 2021, Chevron Australia announced a new initiative to support nature-based solutions to climate change. The initiative will result in 10 wetland locations across Australia receiving critical restoration. Wetlands can reduce the impacts of floods, offer notable ecosystem services and improve water quality. They are also home to a wide variety of native animals, fish and plants. The initiative will also contribute to innovative blue carbon research.

success stories

During construction of the Angola LNG (ALNG) facility, we became aware that Olive Ridley sea turtles had begun using the area as a nesting site. In response, ALNG engaged the Wildlife Conservation Society to implement a turtle conservation program. A community education program was established within local communities about the importance of protecting sea turtles. Data were collected on local turtle populations, and risks to nesting turtles from construction activities were mitigated. In addition, nests were monitored in place or relocated to a protected hatchery. The conservation program started in 2006 with the support of local fishermen and community members, and by the end of 2020, more than 105,000 turtle hatchlings had been released from the hatchery. In 2021, ALNG signed a memorandum of understanding with Kitabanga Project that included a commitment to fund and monitor the ongoing conservation program.

turtle hatchlings

Chevron monitors green turtle hatchlings on Thevenard Island, Australia, as they journey from nest to ocean. We have measures in place to prevent the turtles from being disoriented by lights from onshore oil wells being decommissioned.

achieving operational goals while protecting the environment

Approximately 30,000 turtle hatchlings emerge from their Thevenard Island (TVI) nests during Australia’s summer months, December through March, and traverse the beach to the ocean. The 2018 migration coincided with the TVI Onshore Plug and Abandonment Project, which involved decommissioning 15 onshore wells after the TVI oil fields and production facility reached the end of their economic life.

Three species of sea turtle inhabit the waters surrounding TVI, and all of them are sensitive to light. Several Australasia business unit (ABU) teams working together identified that the 24-hour well decommissioning cycle could pose a risk to the turtle behavior, as the lights associated with the rig could distract hatchlings from their seaward journey. The project worked to develop a strategy to accommodate the project execution and the protection of the turtles.

To protect the turtles while adhering to the administrative schedule, the ABU partnered with the regulators and fauna handlers to implement risk mitigation strategies. Turtle fences were installed around well pads, regular lighting assessments to assess the efficacy of lighting controls were conducted, hatchling movements were monitored and temporary rig shutdowns occurred during high-risk periods to protect the turtles.

This quick response to the needs of the environment reduced risks to both the project and the turtles.

Chevron's management of the oil field on Barrow Island, off the northwest coast of Australia, is recognized as an industry benchmark for the coexistence of petroleum development and biodiversity protection. Since operations began in 1964, Chevron has implemented measures designed to prevent the introduction of invasive mammal species and the spread of weeds on this Class A nature reserve.

conserving endangered lapwing in Kazakhstan

Tengizchevroil (TCO), our joint venture in Kazakhstan, sponsors the Association for the Conservation of Biodiversity of Kazakhstan (ACBK) and its work on the Sociable Lapwing Conservation Project. While this critically endangered migratory bird is not present in TCO’s operational area, it does breed in Kazakhstan. This conservation project is an important biodiversity offset for TCO to achieve no net loss of terrestrial natural habitat.

In May 2022, the ACBK conservation team discovered the bird in locations where it had not been witnessed nesting for more than seven years. The team satellite-tagged, for the first time, an adult female bird in addition to 17 more birds. ACBK will analyze migratory paths and identify where these individual birds spend their wintering time, which will support additional conservation programs, such as nesting habitat protection.

Chevron supports the Lekki Conservation Center in Lagos, Nigeria, as part of our effort to preserve nature wherever we operate. Located across the street from Chevron’s Lagos offices, this urban nature preserve is the only one of its kind on the Lekki Peninsula. Its 193 acres (78 hectares) of swampland and savannah are home to monkeys, reptiles and birds.

helping a california harbor seal rookery thrive

In 2017, Chevron established the years-long West Coast Decommissioning Program to complete the decommissioning of five oil platforms and related facilities in federal waters off the central coast of California. The Carpinteria Gas Plant pier provides shore-based support to two of the platforms. This pier is adjacent to an active harbor seal rookery. Independent volunteers watch over the rookery year-round, particularly during pupping season from December through May when the city of Carpinteria closes the beach to the public.

Working with the volunteers, we allow monitoring from an overlook on plant property. Wherever possible, the West Coast Decommissioning team takes great care to avoid and reduce disturbances to the seals and their pups. We adjust pier lighting and reduce the public address system noise levels to reduce disturbances to the rookery. Work plans eliminate routine activities on the beach during pupping season. When work is unavoidable, we coordinate with the city and dedicate onsite wildlife monitors to reduce potential impacts to the seals. Our personnel also undergo marine mammal training, specific to their responsibilities, to remain sensitive to the seals and the surrounding environment.

restoring new mexico wetlands

Regulatory-required remediation activities at the Questa Mine in New Mexico triggered the need to offset 2.74 acres of wetlands. In consultation with stakeholders, Chevron elected to restore wet meadows and mountain fen, which is a high-altitude peat-forming wetland unique to the area.

Restoration in the Cabresto Creek watershed of New Mexico’s Sangre de Cristo Mountains began in 2019. By 2021, we had restored approximately 6.7 acres of wetland habitat through the installation of corrective structures.

Site monitoring confirms a reduction in erosion and a rise in the water table. Vegetation is responding to the hydrology improvements, and characteristic mountain fen and wet meadows plant species are returning.

preserving gnatcatcher habitat in california

For nearly a century, the West Coyote Hills property in Fullerton, California, operated as a 2,000-acre oil field until operations ceased in the early 1990s. The property is one of the few large, contiguous tracts of natural lands south of the San Gabriel Mountains. It is home to a variety of wildlife species and protected vegetation, including the endangered California gnatcatcher and coastal sage scrub, the bird’s habitat.

In 2021, we sold 24 acres to the city of Fullerton. The sale allowed remediation of the site and a link to the Robert Ward Preserve, an area we had previously donated to the city. Additionally, Chevron converted two miles of roads in the preserve to nature trails for public use.

chevron protects biodiversity

barrow island kangaroo

Chevron has instituted a strict quarantine management system to protect biodiversity on Barrow Island. In addition to being a Class A nature preserve, the island off Western Australia is also home to Chevron’s massive Gorgon natural gas development project.

Wild Files is an infographic story series that spans the world to cover interesting examples of how we deliver on our commitment to environmental stewardship.

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