Highlights

  • Brookside has established first sales from two newly completed Suttles Pad wells in Oklahoma.
  • Sabres targets the Sycamore Formation, while Whalers targets the Woodford Formation.
  • The company reports approximately 70% working interest in each well.
  • The development brings operated producing wells in the SWISH Play to eleven.
  • Initial production rates and associated well-level financial information remain undisclosed.

Brookside Energy Limited (ASX:BRK) is an Australian-listed oil and gas company developing and producing hydrocarbons in Oklahoma, United States. On 28 October 2026, the company reported that the Sabres and Whalers wells at its operated Suttles Pad had commenced sales. The update marks the transition of both wells from completion activity to early production, although the wells remain in flowback and representative operating data has not yet been released.

How the Suttles Wells Fit the Oklahoma Operations

The Suttles Pad forms part of Brookside Energy Limited (ASX:BRK) operations in the SWISH Play, situated within the southern SCOOP area of Oklahoma’s Anadarko Basin. Sabres 2-1-1S-3W SXH1 was completed in the Sycamore Formation, while Whalers 2-1-1S-3W WXH2 was completed in the Woodford Formation.

Brookside Energy Limited (ASX:BRK) operates both wells and has reported an approximate 70% working interest in each. That percentage describes its share of working interests rather than the share of revenue it ultimately receives. The company did not provide the net revenue interest in the latest notice.

First Sales and the Flowback Process

The 28 October announcement confirmed that both wells began flowing to sales early in the flowback period. Flowback involves recovering fluids associated with well completion as the wells transition towards more representative production conditions. Starting sales indicates that hydrocarbons have entered the sales system; it does not, on its own, establish the sustained production level of either well.

With Sabres and Whalers contributing to the operated producing well count, Brookside Energy Limited (ASX:BRK) reported eleven operated producing wells in the SWISH Play. The announcement did not state combined production across those wells.

Production Figures Still Outstanding

The first-sales announcement did not disclose initial oil or gas production rates, well-level production volumes, realised prices or revenue estimates for Sabres and Whalers. Although Brookside previously disclosed a gross budget of approximately US$18.5 million for the two-well Suttles development programme, the latest update did not provide revised project expenditure or well-specific costs.

The company intends to report IP24 and IP30 figures once sufficient representative production data is available. These measures describe initial production across 24-hour and 30-day periods respectively. Early flowback performance may not reflect longer-term output, making the basis and timing of the reported rates important when interpreting the eventual results.

Operating Factors and Next Disclosures

Completion of drilling and commencement of sales are separate from assessing the wells’ continuing output. Production rates can vary while completion fluids are recovered, and subsequent performance depends on reservoir characteristics and operating conditions. Oil and gas prices will also affect realised revenue, but the 28 October notice did not provide pricing assumptions or a revenue estimate.

Brookside Energy Limited (ASX:BRK) said the immediate operational task is managing the two wells through flowback and collecting the data necessary for its initial production disclosures. No definite publication date for the IP24 or IP30 figures was supplied. Although Brookside previously disclosed a development budget for the Suttles programme, the absence of representative production rates, realised revenue and updated well-level expenditure prevents a reliable assessment of investment recovery from the first-sales announcement alone.

Key Insights

Brookside Energy Limited (ASX:BRK) has reached a measurable operating milestone at the Suttles Pad by establishing first sales from Sabres and Whalers. The wells broaden its operated producing position in Oklahoma, but the economic significance remains undetermined until representative production and financial data are published. The next company disclosures will provide a clearer basis for understanding the contribution of these additions to the SWISH operations.