Maple Groove Wealth Planners
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A plain-cash valuation · Gran Tierra Energy Inc. (TSX: GTE)

How much cash does Gran Tierra really make, and what is a share of it worth?

Gran Tierra Energy is an oil producer working the Putumayo and Middle Magdalena basins of Colombia and the Oriente basin of Ecuador, with a Canadian gas and oil business added through the late 2024 purchase of i3 Energy. It produced 45,709 boe a day of working interest volumes in 2025. In 2026 it agreed to sell the whole Colombia and Ecuador business to Maurel and Prom for US$1.33 billion of enterprise value, which would leave a smaller, Canada-focused company. This page counts only the cash that was actually left over each year, after every bill was paid and every well was drilled, then asks the only question that matters to an owner: what is one share worth, and how does that compare with the price? The rules come from the calculations economists and engineers use to decide whether a project is worth building, applied to a whole company.

figures to FY2025 · price US$9.87 (close of 28 August 2026) · all figures US dollars · Gran Tierra reports in US dollars, so every money figure on this page including the share price is US$. Its TSX close of C$13.75 on 28 August 2026 lines up with the NYSE American close of US$9.87 at the Bank of Canada rate of 1.3888 that day.
Every year of this cash history has been hand-checked against the company's own audited annual filings; the sources are named at the bottom of the page.
Step 1
Count only real cash
10 years of reported accounts, worked down from the "cash flow" in the headlines to the cash that was truly left for owners after every well was drilled.
Step 2
Project it forward
Start from the average of the history, or the latest year. Grow it at the dial you set for ten years, then at a long-run rate for as long as the wells keep producing.
Step 3
Bring it back to today
A dollar arriving in ten years is worth less than a dollar now. Your required return sets how much less.
Step 4
Compare it with the price
Take off the debt and the clean-up cost, add anything the business owns but does not need, divide by the shares. That number against US$9.87 is the whole story.
What one share is worth on your settings: the most you could pay today and still earn your required return
−$9.02per share, US$
Price far above value
Paying far more than it is worthPrice equals value at US$9.87Buying well below value
Today's share price, close of 28 August 2026
US$9.87
35.38M shares · US$349M in total
What you gain or lose buying at US$9.87
−$18.89
value minus price, in today's dollars; a minus sign means you are paying more than the cash is worth
The growth today's price assumes
+19.6% a year
ten years of growth in real cash that makes this start worth exactly US$9.87
When you get your money back, with your return
not within the well life
years until the cash you receive repays US$9.87 plus your required return
Your dials
-5%051020%
-4% declining0 flat+3%
6%89 typical1214%
How long the wells keep producing
Well life set to 15 years, the proved plus probable reserves.

What Gran Tierra really earned, and what you are assuming it will earn

Solid bars are reported history: the real cash left each year after every bill was paid and every well was drilled. Negative years are when the owners put cash in; positive years are when it came back out. Striped bars are your projection.

Owners put cash in (a negative year)Real cash left for ownersYour projectionDividends and buybacks (when shown)
-0.2B-0.1B00.1B0.2B0.3BUS$reportedprojected201620202025203020352040US$259MUS$34M
Table view: every year, US$ millions
YearStatusReal cash leftPer share
2016reported−29.1−$0.91
2017reported−51.7−$1.30
2018reported−46.5−$1.09
2019reported−163.9−$4.35
2020reported34.1$0.93
2021reported142.9$3.88
2022reported258.5$7.00
2023reported38.6$1.15
2024reported52.4$1.64
2025reported100.6$2.84
2026projected33.6$0.95
2027projected33.6$0.95
2028projected33.6$0.95
2029projected33.6$0.95
2030projected33.6$0.95
2031projected33.6$0.95
2032projected33.6$0.95
2033projected33.6$0.95
2034projected33.6$0.95
2035projected33.6$0.95
2036projected33.6$0.95
2037projected33.6$0.95
2038projected33.6$0.95
2039projected33.6$0.95
2040projected33.6$0.95

If you bought one share today

The red bar is what you pay. Yellow years pay you back, including the return you asked for. Green years are pure profit on top. If there is no green, you paid more than the cash is worth.

What you payPaying you back, with your returnProfit on top
−$10−$8−$6−$4−$2$0$2buyyr 5yr 10yr 15−$9.87 paid

At these settings you never get US$9.87 back with a 9.0% return within 15 years. Buying at US$9.87 loses you $18.89 a share in today's dollars.

What a share is worth under different assumptions

Your required return down the side, ten-year growth across the top. Your current setting is outlined; the dashed cells are within 10% of today's price. Blue means worth more than US$9.87, red means worth less.

return \ growth
-4%
-2%
0%
+2%
+4%
+6%
+8%
+10%
+12%
6%
$-10
$-9
$-8
$-6
$-5
$-3
$-1
$1
$4
7%
$-10
$-9
$-8
$-7
$-6
$-4
$-2
$0
$2
8%
$-10
$-10
$-9
$-7
$-6
$-5
$-3
$-1
$1
9%
$-11
$-10
$-9
$-8
$-7
$-6
$-4
$-2
$0
10%
$-11
$-10
$-9
$-9
$-7
$-6
$-5
$-3
$-1
11%
$-11
$-11
$-10
$-9
$-8
$-7
$-6
$-4
$-2
12%
$-11
$-11
$-10
$-9
$-8
$-7
$-6
$-5
$-3
13%
$-12
$-11
$-10
$-10
$-9
$-8
$-7
$-6
$-4

Growth after year 10, the well life, the starting point and the switches above all carry through. Every cell is the same arithmetic as the big number at the top.

Three honest answers from the same cash

Three answers from the same accounts and the same arithmetic, at your required return, long-run growth and well life. The gap between them is the growth you choose to believe in, and nothing else.

Floor: if it never grows again
The 10-year average of real cash with the growth dial at zero: ten flat years, then your long-run dial. This is the floor if the business never grows again.
✕−$9.02
per share · -191% versus the US$9.87 price
Anything paid above this number is paying for growth that has not been demonstrated yet.
Base: the default settings
The same 10-year average of real cash, grown 0.0% a year for ten years. With the South American sale agreed and Canada the intended go-forward business, ten years of history is a poor guide to what comes next, so the growth dial starts at 0 per cent.
✕−$9.02
per share · -191% versus the US$9.87 price
To get here you have to believe 0.0% a year holds for a full decade. Move the dials to your own numbers.
The latest year, projected
The most recent year's real cash (2025), grown at the default 0.0% a year. A single year can flatter or punish a producer; the bars above show where it sits in the cycle.
✕$6.92
per share · -30% versus the US$9.87 price
One year of cash rides on one year's prices; the averages smooth the cycle.

From the reported figures to the cash in the bank, FY2025

Reported profit is an accountant's number, and the "cash flow" companies quote usually leaves the drilling out. Here the reported figures are worked down to the cash that was actually left after every bill and every well. Figures in US$ millions.

FY2025, US$ millions
Profit, as reported (the headline number)−193.1
Cash generated by operations, as reported313.3
+ Interest paid, put back74.4
− Rent on leases−11.2
− Every dollar spent on wells and plants−275.9
= Real cash left for owners100.6
Per share (35.44M diluted)$2.84
For comparison: dividends paid in 20250.0
For comparison: buybacks in 20253.5
For comparison: assets bought and sold, net−3.4

What we take out, and why

  • Depreciation, depletion and every other paper charge: accountants spread the cost of past drilling over years. We ignore that and count the cash actually spent on wells and plants in the year it went out, so nothing is counted twice.
  • Interest paid: put back. Interest is the price of borrowed money, and your required return already charges for the price of money, so every company is judged the same way whether it borrows or not.
  • Rent on leases: small and short leases are treated as a cost of producing, like fuel.
  • Every dollar spent on wells and plants: taken out in full, including the drilling that grows production. That spending buys the future cash the dials project, so it is counted where it happens.

What 10 years of accounts say

Every line the model uses, every year, with the latest year highlighted. Dividends and buybacks are shown as money leaving for owners.

Every year, US$ millions

US$ millions2016201720182019202020212022202320242025
Profit, as reported−465.6−31.7102.638.7−778.042.5139.0−6.33.2−193.1
Cash generated by operations, as reported93.0189.6284.5177.781.1244.8427.7228.0239.3313.3
+ Interest paid, put back5.69.716.037.850.250.143.443.860.774.4
− Rent on leases0.00.00.00.0−0.9−2.2−2.2−6.5−13.3−11.2
− Spent on wells and plants−127.8−251.0−347.1−379.3−96.3−149.9−210.3−226.6−234.2−275.9
= Real cash left for owners−29.1−51.7−46.5−163.934.1142.9258.538.652.4100.6
Real cash per share, US$−$0.91−$1.30−$1.09−$4.35$0.93$3.88$7.00$1.15$1.64$2.84
Assets bought and sold, net499.312.453.277.80.0−43.10.00.0118.3−3.4
Dividends paid0.00.00.00.00.00.00.00.00.00.0
Buybacks0.0−17.9−12.7−37.60.00.0−27.3−17.3−15.3−3.5
Debt after cash, year end171.9244.2348.4692.2761.1631.6467.5505.1658.8641.9
Shares, millions (diluted average)32.139.742.737.736.736.836.933.532.035.4

How the maths works, and what to be careful about

The words on this page

Real cash (true cash)
What was left in the bank each year after every bill, every tax payment and every well drilled. Not profit, and not "cash flow" as companies usually quote it, which leaves the drilling out. The strictest number there is.
Required return
The yearly return you insist on for taking the risk. A dollar promised in ten years is worth less than a dollar today; this rate says how much less. 9% is a common professional figure for a large Canadian producer; the reserve engineers use 10%.
Well life (reserve life)
How long the wells keep producing. After the life you choose, nothing is counted. McDaniel evaluated 258 million boe of proved plus probable reserves at 31 December 2025 (142 million boe proved), with Canada holding 44 per cent of the 2P and 39 per cent of the proved barrels. Against 2025's working interest production of 45,709 boe a day (16.7 million boe a year) that is a 15.5 year 2P reserve life and 8.5 years proved. The agreed sale of Colombia and Ecuador would hand roughly 144 million barrels of that 2P to Maurel and Prom.
What a share is worth
Every future year's cash, shrunk back to today's dollars at your required return, added up, less the debt, less the cost of cleaning up the wells, divided by the number of shares. Pay less than this and you earn more than your required return; pay more and you earn less.
Where the default growth comes from
With the South American sale agreed and Canada the intended go-forward business, ten years of history is a poor guide to what comes next, so the growth dial starts at 0 per cent.

The arithmetic, step by step

  1. Count the real cash each past year: cash generated by operations as reported, plus interest paid put back, minus rent on leases, minus every dollar spent on wells and plants. Buying and selling assets is shown separately.
  2. Project it. The starting cash you choose (an average of the history, or the latest year) grows at your growth dial for ten years, then at the long-run rate for as long as the wells keep producing. Nothing is counted after the well life ends.
  3. Bring it back to today. Each year's cash is shrunk by your required return, counted at mid-year because cash arrives through the year rather than on 31 December.
  4. Turn it into a share value. Add up the shrunk cash; take off net debt of US$479M; take off the US$123M cost of cleaning up the wells if that switch is on; divide by 35.38M shares.
  5. Work it backwards. "The growth today's price assumes" is the ten-year growth rate at which this start is worth exactly the share price.

Where the numbers come from

  • Every figure is in US dollars under US GAAP. Operating cash flow, cash interest paid, lease payments and capital spending for every year from 2016 to 2025 were hand-checked on 1 September 2026 against the audited consolidated statements of cash flows and the cash-paid-for-interest disclosures in the fiscal 2018, 2021, 2024 and 2025 10-K filings on SEC EDGAR; every figure matched the filings to the thousand of dollars.
  • In 2026 Gran Tierra agreed to sell substantially all of its Colombia and Ecuador operations to Maurel and Prom for US$1.33 billion enterprise value. The history on this page describes a company about to change shape, so treat any projection of past cash flow with real doubt until the deal closes or breaks.
  • The share counts are adjusted for the 1-for-10 reverse split of May 2023; earlier years' reported counts were divided by ten so every year is on today's share basis.
  • This is a country-risk story as much as an oil story: Colombian security, pipeline disruptions, local blockades and tax changes have repeatedly moved results, and the large 2016, 2020 and 2025 net losses include impairments of US$616 million, US$560 million and US$136 million.
  • The acquisitions column is taken from the audited investing sections: business combinations, property acquisitions and investments, net of dispositions. 2016 is the US$488.2 million PetroLatina purchase plus US$19.4 million of property acquisitions less US$8.3 million of disposals; 2017 to 2019 include property acquisitions of US$34.4, US$53.2 and US$77.8 million that aggregated data omits; 2021 is the sale of the entire PetroTal share stake for US$43.1 million; 2024 is the US$162.7 million i3 Energy purchase net of US$44.4 million of dispositions; 2025 nets US$4.5 million of property purchases against US$7.9 million of proceeds.
  • Interest is the cash interest paid net, as filed; it has grown with the senior notes and averaged about US$60 million a year lately, which is why the true cash line depends heavily on adding it back.
  • Lease figures are finance lease principal payments only, nil before the 2019-2020 accounting change; US GAAP keeps operating lease payments inside operating costs, so they are already deducted from cash flow.
  • Net debt for 2016 to 2020 is long-term debt excluding leases less cash from the filings; 2021 to 2025 includes finance leases. The company's own year-end 2025 net debt of US$657.6 million uses the face value of its notes. The US$479 million shown as current is the company's reported net debt at 30 June 2026.
  • Gran Tierra has never paid a dividend; shareholder returns have come through episodic buybacks.
  • Per-year production is left off the history because a consistent ten year working interest series was not compiled; 2024 and 2025 averaged 34,710 and 45,709 boe a day.
  • Analyst targets: average US$21.60 across 6 analysts (stockanalysis.com analyst consensus, US listing, in US$, 28 August 2026).

For the technically minded

The method is the one used to evaluate capital projects, from Ted Lawrence, The Business Guide to Economic Evaluations: Projects, Leases, Tariffs and Acquisitions (2017). "Real cash" is the book's project cash flow (chapter 3) with depreciation, debt servicing and debt-like leases restructured out (chapters 4, 5 and 19); short operating leases stay in as a cost of producing, a chapter 19 judgment. The value per share follows the share-purchase evaluation of chapter 20: present value of the company's cash flows at the cost of capital (chapter 10), mid-year discounting (chapter 12), plus non-required assets, less net debt and the decommissioning liability. "What you gain or lose" is the bid-curve NPV of chapter 20; "when you get your money back" is the discounted payout of chapter 13; the bars follow the project profile of chapter 6. The reverse solve on growth is a plain reverse DCF.

Discount-rate anchors: 9% is a common cost-of-equity figure for a large Canadian producer and 10% is the reserve-report convention (PV10). The long-run rate defaults to 0% here: a depleting resource should not be assumed to grow forever, so anything above zero is a judgment you make with the dial.

Maple Groove Wealth Planners · prepared by Trevor Lawrence, Financial Advisor · every number on this page traces to the sources listed above or a dial you can see. For education, not investment advice.

This page illustrates a research process and is provided for general information only. It is not investment advice and not a recommendation to buy or sell any security. Figures are as at the dates shown and will change. Shares carry risk, including the possible loss of capital. Please speak with a qualified advisor about your own circumstances.