The Commerce Commission has received a clearance application for the proposed merger of independent fuel retailers NPD and Gull, which would create New Zealand’s third-largest retail fuel network with more than 240 stations.
Astra Energy Group Limited filed the application on 16 January seeking approval to acquire all shares in both GNZ Holdco Limited (Gull) and NPD Group Investments Limited (NPD). The Commerce Commission published a statement of preliminary issues on 20 January, outlining key competition concerns it will investigate.
The proposed merger would combine NPD’s predominantly South Island network of 95 retail sites with Gull’s mainly North Island operations spanning 124 locations. NPD operates 77 retail sites in the South Island and 18 in the North Island, while Gull runs 113 North Island sites, eight in the South Island, and three marinas.
Both companies are independent low-cost operators supplying fuel predominantly through unstaffed sites. The Commerce Commission has previously noted that unmanned stations have a significant positive price effect in retail markets when they enter.
Under the proposed structure, Astra Energy would be owned 50% by entities managed by Allegro Funds (Gull’s current owner) and 50% by NPD’s current shareholders via the Sheridan Investment Trust.
Strategic rationale and industry context
The companies say the merger aims to create a national low-cost fuel operator capable of more effectively competing with global majors BP, Mobil, and Z Energy. The three majors supply around 95% of fuel supply volumes in New Zealand and control over 50% of retail sites.
Astra Energy argues the transaction would generate synergies through accelerated network expansion, increased commercial volumes, fuel purchasing benefits through increased scale, and enhanced supply chain optimisation. The merger would also provide access to Gull’s Mount Maunganui terminal, which has approximately 90 million litres of storage capacity across six tanks.
The companies cite challenging industry conditions including the energy transition, regulatory uncertainty around electric vehicle adoption, and increasing sector competition as drivers for the consolidation. Recent regulatory changes have reduced projected electric vehicle penetration from 35-45% to 15-25% by 2035, though these projections could change with policy shifts.
Competition concerns and market analysis
The Commerce Commission says it will investigate whether the merger would substantially lessen competition through unilateral or coordinated effects. Key areas of focus include the degree of competition between NPD and Gull, constraints from existing competitors, and barriers to new market entry.
The Commission will examine local markets for retail fuel supply using both 2km radius and five-minute drive time methodologies, regional markets for commercial fuel customers, and terminal storage facilities at Mount Maunganui.
Astra Energy argues the merger would not trigger concentration indicators on a national basis and claims minimal geographic overlap between the two networks. The applicant says no local markets would see competitor numbers reduced from three to two or two to one.
However, the Commission will investigate several specific issues including:
- The closeness of competition between Gull and NPD in overlapping markets
- Remaining competitive constraints from other fuel suppliers
- Barriers to entry and expansion for rivals
- Whether customers have countervailing power to resist price increases
- The vulnerability of markets to coordination between suppliers
Market definition questions
The Commission will consider whether separate product markets should be defined based on service levels, such as staffed versus unstaffed stations. It will also examine appropriate geographic boundaries for competition analysis, including whether 2km radius or five-minute drive times better reflect customer behaviour.
The regulator is particularly interested in understanding customer switching patterns between different types of fuel sites, the extent to which suppliers consider nearby competitors when setting prices, and whether competition dynamics differ between rural and urban areas.
Commercial and wholesale markets
In commercial fuel supply, the companies estimate their combined market share would fall well within the Commission’s concentration indicators. They argue the merger would promote competition by enabling national coverage for commercial customers, something neither company can currently offer independently.
NPD does not supply fuel to third-party resellers, while Gull supplies small volumes to independent distributors. The merger would not significantly change wholesale market dynamics, according to the applicant.
Coordinated effects analysis
The Commerce Commission will assess whether the merger makes coordination between fuel suppliers more likely. In its 2016 Z Energy/Chevron decision, the regulator noted that Gull’s presence made coordinated outcomes difficult to achieve in local markets.
Astra Energy argues that structural changes since the Commission’s 2019 retail fuel market study have reduced coordination risks, including new regulatory oversight, decreased transparency between importers, and increased investment by new entrants.
Recent competitive responses include Z Energy’s launch of U-Go unstaffed stations in March 2025 and Mobil’s conversion of some sites to unmanned operations, reflecting the sector’s evolution toward the low-cost model pioneered by independents.
Timeline and submissions
The Commerce Commission is scheduled to decide on the application by 16 March 2026, though this deadline may extend if additional analysis is required. Interested parties can submit comments until close of business on 3 February 2026.
The Commission invites submissions on competitive effects, market definition issues, and the degree of constraint different fuel suppliers impose on each other. All public submissions will be published on the Commission’s website.
The proposed merger represents a significant consolidation in New Zealand’s independent fuel retail sector, combining two operators that have driven pricing competition through their low-cost unmanned station model across complementary geographic networks.
