Natural Resources — Investment Banking Mock Interview
Master mine-by-mine NAV models, AISC cost curve analysis, reserve classification, and advanced topics like cutoff grade manipulation, real options, and streaming company premiums.
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Key Topics Covered
NAV Methodology: Mine-by-Mine DCF Without Terminal Value
Explains why mines are wasting assets where a terminal value of zero is the correct assumption, covers how to capture beyond-mine-plan value through resource conversion, exploration potential, and life-of-mine extension buckets, and details asset-specific discount rates based on development stage, jurisdiction, and commodity mix.
AISC, the Cost Curve & Reserve-to-Resource Spectrum
Covers All-In Sustaining Cost as the comprehensive breakeven metric that prevents companies from hiding necessary capital spending behind low cash costs, explains how the industry cost curve determines the commodity price floor at the marginal producer, and distinguishes the full Inferred through Proven reserve classification spectrum.
E&P Accounting: Successful Efforts vs. Full Cost & WI/NRI
Details how Successful Efforts expenses dry holes immediately while Full Cost capitalizes everything with a ceiling test safeguard, and walks through the Working Interest versus Net Revenue Interest distinction where failing to account for the royalty burden massively overstates project IRRs.
Royalty/Streaming Models & Multiple Premiums
Explains why streaming companies command two to three times higher EBITDA multiples than operating miners by eliminating operating cost inflation and CapEx overrun risk, covers how streams reduce a miner's reported AISC by shrinking byproduct credits, and contrasts royalty revenue-share mechanics with streaming fixed-price purchase agreements.
Advanced Concepts: Cutoff Grade, Real Options & Timberland
Covers high-grading as a management manipulation that trades mine life for short-term cash flow, the real options framework that explains why deposits with negative NPV at current prices still have meaningful value as call options on commodity prices, and timberland valuation using harvest DCFs with Highest and Best Use as a floor.
How to Prepare for Natural Resources Interviews
Understand why AISC is superior to cash costs: the basic session explains that cash costs can paint a misleadingly profitable picture by hiding sustaining CapEx and G&A, while AISC gives the true breakeven. Be ready to discuss where a company sits on the cost curve and what that implies about asset quality and downturn resilience.
Know the cutoff grade manipulation concept from the advanced session. High-grading raises the cutoff grade to process only the richest ore, which boosts near-term AISC and cash flow but sterilizes lower-grade material and shortens mine life. Watch for declining reserve life alongside declining AISC as a red flag.
Be able to explain the real options framework for negative-NPV deposits. The advanced session derives the analogy to a call option where the deposit value is the underlying asset, development cost is the strike price, commodity volatility drives option value, and the concession term sets the expiration. This justifies why exploration companies have market capitalizations despite no current cash flow.
Understand why Working Interest versus Net Revenue Interest is one of the most commonly overlooked modeling errors. The advanced session explains that the operator pays 100 percent of costs but only receives 75 to 80 percent of revenue after the royalty burden, and modeling revenue at 100 percent dramatically overstates economics.
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About This Natural Resources Mock Interview
These sessions cover Natural Resources from depleting asset fundamentals through advanced valuation and deal frameworks. The basic session walks through why depleting assets make NR unique, mining subsectors from precious through base to bulk commodities, the value-to-weight ratio and its impact on market structure, the Oil and Gas value chain, NAV as the primary valuation methodology, P/NAV trading multiples, All-In Sustaining Cost and the cost curve, the resource-to-reserve classification spectrum, the production replacement ratio, strip ratio in mining, BOE conversion, EBITDAX, and royalty versus streaming company business models. The advanced session deepens into why NAV models exclude terminal value while capturing optionality through resource conversion and exploration potential, asset-specific discount rates versus a single WACC for diversified miners, mining tax complexity across jurisdictions, cutoff grade manipulation and high-grading as short-term cash flow tricks, Successful Efforts versus Full Cost accounting with the ceiling test, Working Interest versus Net Revenue Interest and the royalty burden trap, SMOG/SFAS 69 limitations, midstream MLP valuation and IDRs, real options for negative-NPV deposits, how streams impact AISC through reduced byproduct credits, pre-feasibility versus producing mine valuation, timberland and Highest and Best Use analysis, and streaming company multiple premiums.
This topic is part of the Industry Verticals section of our investment banking mock interview library. It includes 2 sessions covering both basic and advanced difficulty levels. Each session includes multi-speaker audio with realistic interviewer questions and candidate responses, plus a full interactive transcript you can follow along with or study independently.
Audio Recording
39 minutes of multi-speaker audio
Full Transcript
Interactive transcript with timestamps
1 Basic + 1 Advanced
Basic & Advanced
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Seen on Twitter
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Analyst
The IB Vine technical prep is beyond helpful, it's so much more fun quizzing myself every now and then vs. reading through the guides again.
Analyst
I personally found that the 'IB Vine Select' collection had some of the exact questions I was asked in my Qatalyst interviews.
Analyst
Thanks for starting up IB Vine. Couldn't have landed my offer without your help!
User Story
I honestly think you're doing gods work since IB Vine democratizes the whole interview process and helps a lot of students ace their interviews.
Analyst
I found this website really helpful, which also helps me better prepare for the technical interview in IBD position and get an offer.
Seen on WallStreetOasis
Check out IB Vine, specifically the 'IB Vine Select' questions. Once you can get a handle of those, it seems like you are in a spot where you're applying the concepts rather than simply memorizing them
Analyst
I've used IB Vine for my recruitment, and I could not imagine the journey without it. Thank you for creating a phenomenal resource.
Seen on WallStreetOasis
Beyond the 400 questions guide, try to understand a deeper level and the underlying concepts of the questions being asked. Use ibvine, it really helps.
Seen on WallStreetOasis
IB Vine has excellent questions, especially multistep ones. In my experience I've gotten grilled on accretion/dilution, bond math, and merger model questions. IB Vine has great practice for all of those.
User Story
As a nontraditional transfer student who has been rendered unavailable to many resources at my university (Leadership positions at clubs, immediately behind the recruiting cycle, etc.) IB Vine has been an absolute game changer in my IB prep.
Seen on WallStreetOasis
From my experience interviewing FT for IB, it’s not enough to just know the 400 questions anymore (it’s a good starting point) but to look at even more advanced questions. Would recommend IB Vine.
Seen on Twitter
heard all the new kids use IB Vine now. the questions on IB Vine helped me get the concepts down when I had to recruit and make a lot of BB/MM interviews easier than I expected for techs
User Story
Just got off the phone with a kid who interned at a Dallas PE firm. He mentioned that IB Vine helped him secure that internship as well as his Summer Analyst offer, especially since he came from a non-target with no resources.
Analyst
The IB Vine technical prep is beyond helpful, it's so much more fun quizzing myself every now and then vs. reading through the guides again.
Analyst
I personally found that the 'IB Vine Select' collection had some of the exact questions I was asked in my Qatalyst interviews.
Analyst
Thanks for starting up IB Vine. Couldn't have landed my offer without your help!
User Story
I honestly think you're doing gods work since IB Vine democratizes the whole interview process and helps a lot of students ace their interviews.
Analyst
I found this website really helpful, which also helps me better prepare for the technical interview in IBD position and get an offer.
Seen on WallStreetOasis
Check out IB Vine, specifically the 'IB Vine Select' questions. Once you can get a handle of those, it seems like you are in a spot where you're applying the concepts rather than simply memorizing them
Analyst
I've used IB Vine for my recruitment, and I could not imagine the journey without it. Thank you for creating a phenomenal resource.
Seen on WallStreetOasis
Beyond the 400 questions guide, try to understand a deeper level and the underlying concepts of the questions being asked. Use ibvine, it really helps.
Seen on WallStreetOasis
IB Vine has excellent questions, especially multistep ones. In my experience I've gotten grilled on accretion/dilution, bond math, and merger model questions. IB Vine has great practice for all of those.
User Story
As a nontraditional transfer student who has been rendered unavailable to many resources at my university (Leadership positions at clubs, immediately behind the recruiting cycle, etc.) IB Vine has been an absolute game changer in my IB prep.
Seen on WallStreetOasis
From my experience interviewing FT for IB, it’s not enough to just know the 400 questions anymore (it’s a good starting point) but to look at even more advanced questions. Would recommend IB Vine.
Seen on Twitter
heard all the new kids use IB Vine now. the questions on IB Vine helped me get the concepts down when I had to recruit and make a lot of BB/MM interviews easier than I expected for techs
User Story
Just got off the phone with a kid who interned at a Dallas PE firm. He mentioned that IB Vine helped him secure that internship as well as his Summer Analyst offer, especially since he came from a non-target with no resources.
Analyst
The IB Vine technical prep is beyond helpful, it's so much more fun quizzing myself every now and then vs. reading through the guides again.
Analyst
I personally found that the 'IB Vine Select' collection had some of the exact questions I was asked in my Qatalyst interviews.
Analyst
Thanks for starting up IB Vine. Couldn't have landed my offer without your help!
User Story
I honestly think you're doing gods work since IB Vine democratizes the whole interview process and helps a lot of students ace their interviews.
Analyst
I found this website really helpful, which also helps me better prepare for the technical interview in IBD position and get an offer.
Seen on WallStreetOasis
Check out IB Vine, specifically the 'IB Vine Select' questions. Once you can get a handle of those, it seems like you are in a spot where you're applying the concepts rather than simply memorizing them
Analyst
I've used IB Vine for my recruitment, and I could not imagine the journey without it. Thank you for creating a phenomenal resource.
Seen on WallStreetOasis
Beyond the 400 questions guide, try to understand a deeper level and the underlying concepts of the questions being asked. Use ibvine, it really helps.
Seen on WallStreetOasis
IB Vine has excellent questions, especially multistep ones. In my experience I've gotten grilled on accretion/dilution, bond math, and merger model questions. IB Vine has great practice for all of those.
User Story
As a nontraditional transfer student who has been rendered unavailable to many resources at my university (Leadership positions at clubs, immediately behind the recruiting cycle, etc.) IB Vine has been an absolute game changer in my IB prep.
Seen on WallStreetOasis
From my experience interviewing FT for IB, it’s not enough to just know the 400 questions anymore (it’s a good starting point) but to look at even more advanced questions. Would recommend IB Vine.
Seen on Twitter
heard all the new kids use IB Vine now. the questions on IB Vine helped me get the concepts down when I had to recruit and make a lot of BB/MM interviews easier than I expected for techs
User Story
Just got off the phone with a kid who interned at a Dallas PE firm. He mentioned that IB Vine helped him secure that internship as well as his Summer Analyst offer, especially since he came from a non-target with no resources.
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