Senex Energy

What Senex Energy does

Senex Energy is an Australian coal seam natural gas producer operating two core developments — Atlas (near Wandoan) and Roma North (near Roma) — in Queensland's Surat Basin, with additional exploration tenure at Rockybar in Central Queensland. The company extracts coal seam methane using specialized subsurface and water management techniques, with produced groundwater redirected to agricultural uses including irrigation and stock water supply.

The business operates on a wholesale B2B model, supplying natural gas under long-term Gas Supply Agreements (typically 7-10+ years) to Australian manufacturers and energy retailers, with delivery through the Comet Ridge to Wallumbilla Pipeline and Queensland Gas Pipeline operated by infrastructure partner Jemena. The contracted customer base spans building products (CSR, Adbri), glass (Orora), steel (BlueScope), packaging (Visy), cement and resource processing (Nyrstar, New Century Resources, Southern Oil Refining), and energy retail and generation (AGL, EnergyAustralia, ENGIE, CleanCo Queensland, CS Energy).

Senex is majority-owned by POSCO International Corporation (50.1%) and Hancock Energy Corporation (49.9%), following a 2022 change of control that committed more than A$1 billion to expand production toward a 60 PJ/year target, representing roughly 40% of Queensland's domestic gas demand and over 10% of east coast domestic requirements. First gas from the Atlas expansion was achieved in February 2025. The company's go-to-market is sales-led, primarily via direct negotiation and Expression of Interest processes for multi-year contracts, targeting the Australian east coast domestic market under Queensland's Australian Market Supply Conditions that require domestic-only supply.

Name

Senex Energy

Legal name

Senex Energy Pty Ltd

Website

https://www.senexenergy.com.au/

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

251–500 employees

Short description

Senex Energy is an Australian coal seam natural gas producer operating the Atlas and Roma North developments in Queensland's Surat Basin, supplying long-term gas supply agreements to domestic manufacturers and energy retailers.

Ownership category

akta.pro rank

Product category

Natural Gas Production and Supply

NAICS

Natural Gas Extraction (21113), Natural Gas Distribution (2212)

SIC

Crude Petroleum & Natural Gas (1311)

akta.pro primary industry

Natural Gas Retail Supplier (Competitive) Marketing & Sales (EUAAADAB)

akta.pro secondary industries

Industrial CNG/LNG Supply & Distribution (Virtual Pipelines, Trucking, Satellite Storage) (EUALALAA), Physical Natural Gas Trading (Pipeline Gas) (EUAGAGAA)

Keywords

• Natural gas production
• Coal seam gas extraction
• Gas supply agreements
• Domestic gas exploration
• Industrial gas supply

Headquarters

HQ city

Brisbane

HQ country

Australia

HQ region

Oceania

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Infrastructure, Supply Chain, Personnel, Others

Revenue model

1. Natural Gas Sales: Senex produces natural gas from its Surat Basin operations and sells it under long-term Gas Supply Agreements (GSAs) to domestic customers including manufacturers, energy retailers, and electricity generators. Revenue is generated through volume-based sales of natural gas measured in petajoules (PJ).

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Senex Energy produces and sells natural gas extracted from coal seam gas (CSG) reservoirs in Queensland's Surat Basin, operating the Atlas and Roma North gas developments. The company supplies domestic Australian manufacturers, energy retailers, and electricity generators under long-term Gas Supply Agreements (GSAs), targeting 60 PJ/year of production to support Australia's east coast gas market.

Product overview

Senex Energy is a natural gas producer operating in Queensland's Surat Basin. The company operates two primary gas developments: Atlas (near Wandoan) and Roma North (near Roma), along with exploration tenure at Rockybar. Atlas was Australia's first natural gas acreage dedicated to domestic supply. The company's operations target 60 PJ/year of secure and reliable natural gas production, representing approximately 10% of east coast domestic gas requirements and 40% of Queensland's domestic gas requirements. Senex supplies gas to Australian manufacturers (CSR, Visy, Orora, BlueScope, Adbri, Southern Oil Refining) and energy retailers (AGL, ENGIE, EnergyAustralia, CleanCo), supporting production of essential goods including bricks, plasterboard, glass bottles, and steel products.

Differentiator

Problem solved

Functional benefit

Products and services

• Atlas Gas Development Natural gas production asset located near Wandoan in Queensland's Surat Basin. Atlas was the first natural gas acreage in Australia dedicated to domestic supply, providing affordable and reliable gas to Australian manufacturers and energy retailers under long-term Gas Supply Agreements.
• Roma North Gas Development Natural gas production asset located in Queensland's Maranoa region near Roma, with associated gas processing facility and pipeline infrastructure. Supplies east coast and international markets with natural gas under long-term contracts to domestic manufacturers, energy retailers, electricity generators, and LNG export markets.
• Rockybar Exploration Tenure Exploration tenure near Cracow and Theodore in Central Queensland, representing future growth opportunities for Senex's natural gas business.

Quantifiable outcome

• 60 PJ/year production target representing 40% of Queensland's domestic gas requirements
• +3 more outcomes

Named customers13 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Three partnerships are on record, tiered core and minor.

• JemenacoreStrategic or Co-development Partner · 2 June 2021Jemena owns and operates the Roma North Gas Processing Facility and associated pipeline infrastructure (Comet Ridge to Wallumbilla Pipeline, Queensland Gas Pipeline). Infrastructure partner enabling gas transport to market. Jemena was awarded construction contract to Wasco Australia for facility expansion.
• Wasco AustraliaminorImplementation/ SI/ Consulting Partner · 2 June 2021Queensland-based construction company awarded $15 million contract for Roma North gas processing facility expansion, creating approximately 40 jobs.
• GLNG (Gulf LNG)minorChannel Partner/ Reseller/ DistributorSenex supplies natural gas to GLNG for export through the LNG terminal, supporting energy security for trading partners and displacing coal-fired generation internationally.

Scale indicators8 records

Recent moves10 records

Expansion highlights6 records

Others

• AGL Energy: AGL is a major Australian energy retailer and electricity generator and is one of Senex's largest contracted offtakers (up to 42 PJ from 2025). Not a peer in production, but a key customer-side counterparty whose decarbonization path shapes Senex's volume runway.

Direct peers

• Arrow Energy: Arrow Energy is a major Queensland coal seam gas producer (Shell/PetroChina JV) supplying both domestic customers and LNG export. Operates in the same Surat/Bowen basins as Senex with overlapping industrial and utility customer base.
• Beach Energy: Beach Energy is an ASX-listed oil and gas producer with operations in the Cooper, Otway and Bass basins. While not CSG-focused, it competes with Senex for east coast gas customers and capital, and serves overlapping industrial offtakers.
• Santos Limited: Santos is Australia's largest domestic gas producer and operates major coal seam gas assets in Queensland (GLNG partnership) alongside conventional and LNG production. It is the closest direct competitor to Senex in Surat/Queensland CSG and east coast domestic supply.
• Cooper Energy: Cooper Energy is an Australian upstream gas producer focused on the south-east Australian domestic market (Otway, Sole, Casino gas fields). Competes with Senex for the same east coast industrial and retailer customer base.

Broad incumbents

• Origin Energy: Origin Energy is one of Australia's largest energy retailers and a major gas producer (APLNG JV stake). It is both a Senex customer (in retail) and a competitor across upstream gas, making it an incumbent peer with overlapping east coast exposure.
• Woodside Energy: Woodside is Australia's largest listed oil and gas producer with a broad upstream portfolio across LNG, pipeline gas and condensate. It overlaps with Senex on east coast gas supply and corporate scale but is more export-weighted and diversified across basins.

Emerging players

• Strike Energy: Strike Energy is an emerging Australian gas developer focused on the Perth Basin (Walyering) and South West Queensland projects. Smaller scale than Senex but competes for east coast gas development capital and potential offtake customers.
• Comet Ridge: Comet Ridge holds Mahalo Gas Project interests in the Surat Basin, directly adjacent to Senex's acreage. Smaller producer pursuing similar east coast domestic gas customers, making it a relevant emerging peer.
• Empire Energy Group: Empire Energy is an Australian-listed upstream company developing the Carpentaria gas project in the Beetaloo/McArthur Basin. Smaller scale and geographically distinct, but competes for capital and represents a comparable Australian gas-development story.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/SenexEnergy

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Senex Energy