Challoner Park 23 Carbon Project

Challoner Park 23 Carbon Project is a soil carbon sequestration project located on the "Challoner Park" station, approximately 110km west of the small border town of Hebel in southern Queensland. Registered on April 24, 2024, the project currently covers 11,306 hectares, comprising a significant portion of the larger 20,800-hectare agricultural aggregation.

The project operates under the 2021 Soil Carbon methodology, which credits landholders for increasing soil organic carbon levels through changes in agricultural management. Specifically, this project aims to boost carbon storage by applying synthetic or non-synthetic fertilizers to address material nutrient deficiencies in the soil. This practice helps optimize plant growth and root biomass, which in turn drives carbon sequestration into the soil profile.

The surrounding Balonne region is classified as semi-arid, receiving an average annual rainfall of approximately 400mm. The landscape at Challoner Park is defined by flat to gently sloping plains featuring soft red and grey clay soils. Historically, the land has been utilized for mixed farming, including the grazing of cattle, sheep, and goats, as well as opportunistic wheat cropping on improved country. Notably, the property features extensive exclusion fencing, an infrastructure improvement highlighted in past sale listings as a key factor in managing total grazing pressure from kangaroos and pests.

The project is managed by Loam Carbon, a developer known for integrating microbial soil technologies with carbon farming. Since its registration, the project area has undergone adjustments, with variations filed in September 2024 and October 2025 to remove specific areas from the carbon estimation area.