Business Context and Reporting Period
Vista Oil & Gas, S.A.B. de C.V. filed a Form 6-K on February 14, 2022, reporting certified proved oil and gas reserves as of December 31, 2021, together with fourth-quarter and full-year 2021 production data. The filing primarily concerns reserves and operating performance; it does not provide a full income statement, balance sheet, cash flow statement, debt balance, or liquidity analysis.
Key Financial and Operating Metrics
| Metric | 2021 | 2020 | Change |
|---|---|---|---|
| Total proved reserves | 181.6 MMboe | 128.1 MMboe | +42% |
| Proved developed reserves | 64.7 MMboe | 53.3 MMboe | +21% |
| Proved undeveloped reserves | 116.9 MMboe | 74.9 MMboe | +56% |
| Average total production | 38,845 boe/d | 26,594 boe/d | +46% |
| Average oil production | 30,359 bbl/d | 18,324 bbl/d | +66% |
| Average natural gas production | 1.27 MMm3/d | 1.22 MMm3/d | +4% |
| Reserves replacement ratio | 477% | Not stated | Not stated |
| Implied proved reserves life | 12.8 years | Not stated | Not stated |
Fourth-quarter 2021 production averaged 41,064 boe/d, up 34% year over year and 2% sequentially. Oil production was 32,436 bbl/d, up 41% year over year, while natural gas production was 1.29 MMm3/d, up 15%.
Bajada del Palo Oeste held 155.0 MMboe of proved reserves, representing approximately 85% of total proved reserves and a 57% increase from year-end 2020. The company tied in 20 new wells during 2021, added 52 proved shale-oil locations, and reported 134 booked proved locations in the block.
Argentina proved reserves were valued using estimated future net cash flows of $3,141.9 million undiscounted and $1,512.3 million discounted at 10% per annum. For Mexico’s CS-01 block, the corresponding amounts were $63.5 million undiscounted and $24.4 million discounted at 10%. These are reserve valuation metrics, not reported revenue, profit, or cash flow.
Material Changes Versus the Prior Comparable Period
- Total proved reserves increased by 53.5 MMboe, or 42%, from 128.1 MMboe at year-end 2020.
- Reserve additions totaled 67.6 MMboe against 14.2 MMboe of 2021 production, producing a 477% total reserves replacement ratio.
- Proved undeveloped reserves increased 56%, substantially faster than proved developed reserves, which increased 21%.
- Oil represented the principal source of reserve and production growth: proved oil reserves increased to 146.6 million barrels from 99.5 million barrels, while average oil production rose 66%.
- CS-01 proved reserves increased to 4.5 MMboe from 0.2 MMboe, supported by approval of a 23-location field development plan and Vista’s increase in working interest from 50% to 100%.
Guidance, Outlook, Risks, and Unusual Items
Management stated that continued investment in Bajada del Palo Oeste is expected to support incorporation of additional well locations into the proved reserves base. Vista identified up to 550 new well locations in the block and had drilled and tied in 40 shale-oil wells since project inception in 2018.
The reserve estimates were prepared by DeGolyer and MacNaughton for Argentina and Netherland Sewell & Associates for Mexico. SEC reserve valuations use specified constant prices and a 10% discount rate; reported values are therefore sensitive to reserve estimates, production performance, development timing, costs, commodity prices, operating conditions, and regulatory requirements.
The filing contains customary forward-looking statement warnings. Actual results may differ because of known and unknown risks, uncertainties, and other factors described in Vista’s SEC and Mexican regulatory filings. The filing does not provide specific 2022 production, capital expenditure, revenue, earnings, debt, or liquidity guidance.
Investor Verification Checklist
- Verify the independent reserve reports, reserve classifications, and the assumptions supporting the 181.6 MMboe proved reserve estimate.
- Assess whether the large undeveloped reserve base can be converted into production within the stated reserves life and at expected costs.
- Monitor Bajada del Palo Oeste well productivity, drilling and tie-in pace, infrastructure capacity, and capital requirements.
- Review commodity-price, cost, regulatory, concession-term, and Argentina/Mexico operating risks underlying the reserve valuations.
- Reconcile the production growth reported in this filing with subsequent financial statements, including realized prices, revenue, margins, operating cash flow, debt, and liquidity.