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.
More Industry Verticals Topics
View allConsumer/Retail (CRG)
Covers foundational concepts for the Consumer/Retail (CRG) industry vertical in investment banking. Discusses key industry metrics, valuation considerations, and sector-specific interview questions.
Energy, Power & Renewables
Covers foundational concepts for the Energy, Power & Renewables industry vertical in investment banking. Discusses key industry metrics, valuation considerations, and sector-specific interview questions.
Financial Institutions (FIG)
Covers foundational concepts for the Financial Institutions (FIG) industry vertical in investment banking. Discusses key industry metrics, valuation considerations, and sector-specific interview questions.
Financial Sponsors Group (FSG)
Covers foundational concepts for the Financial Sponsors Group (FSG) industry vertical in investment banking. Discusses key industry metrics, valuation considerations, and sector-specific interview questions.
Healthcare (HC)
Covers foundational concepts for the Healthcare (HC) industry vertical in investment banking. Discusses key industry metrics, valuation considerations, and sector-specific interview questions.
Industrials
Covers foundational concepts for the Industrials industry vertical in investment banking. Discusses key industry metrics, valuation considerations, and sector-specific interview questions.
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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Perella Weinberg
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Lazard
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Houlihan Lokey
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Jefferies
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Morgan Stanley
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Houlihan Lokey
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Evercore
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Rothschild
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RBC
“IB Mock was amazing - I used it for multiple hours. Also the flashcards and the lessons features on IB Vine were fantastic. Thank you!”
Dragoneer
“IB Vine is such a great platform, really impressive. There is so much value in this. The audio podcasts / mock interview library are pretty incredible.”
Moelis & Co.
“I loved IB Vine. I’m going into Private Capital Advisory (PCA); you have the lessons on there for PCA and that was actually a game changer. I went into those interviews and knew about the core PCA concepts like net asset value, primary fundraising vs. secondary advisory, etc. I swear I was on IB Vine like a few hours a day. The opportunity to have that learning section and go through the questions people submit and everything — there’s no better tool out there. I loved the guides/lessons. The user interface is amazing. The way you’ve simplified it is so spectacular — it’s just so much easier to digest. It’s fun to use too; I’d rather use IB Vine than scroll through a guide. To be honest, I think the product is perfect. I genuinely owe you a big thanks.”
Moelis & Co.
“IB Vine is a tool we really love to use in the club I’m a part of, and there’s really no other resource like it. You guys do a phenomenal job with the question bank. I recruited specifically for Energy banking, and IB Vine was my most used resource for generalist questions (which were about 50% of my interview questions; the rest being Energy-specific); the majority of such questions I saw in interviews were at least similar (if not the same) to the ones on IB Vine.”
Perella Weinberg
“Once I read through the BIWS learning guides, I really didn’t refer to them again. I didn’t even really run through the 400 question guide once I found IB Vine, which I heard about through one of my classmates. We even get a free subscription (like most business schools) to Wall Street Prep, and if I’m being completely honest, I never even logged in to WSP. IB Vine is pretty much the only tool I used (along with our club question bank & mock interviews with peers) and it was invaluable for recruiting.”
Cantor Fitzgerald
“What a platform, made such a huge difference. I did superdays at Evercore, PJT, M. Klein and Barclays among others from a non-target school and did not miss a single technical in any interview process through prepping with IB Vine.”
Barclays
“Very accurate questions and all of the solutions are easy to follow. At least 10 of the questions I studied through this platform appeared in my Round 1 or Superday interviews.”
TD Securities
“THANK YOU SO MUCH IB VINE, I COULD NOT HAVE DONE THIS WITHOUT YOU, SERIOUSLY!!! IB Vine was the best website ever. I spent at least two hours on this daily (seriously) from October through I get my offer in February.”
Citadel
“I’m doing public equities this summer and next. I know the name is “IB Vine” but at the undergrad level a lot of the technicals across public equities are the same as investment banking. I recommend your software to all my friends!”
Piper Sandler
“I loved this site! 1000% this is the best resource I used in the process.”
Lazard
“This was the greatest tool ever. I genuinely enjoyed running through the technicals/behaviorals and it was very helpful!”
Houlihan Lokey
“IB Vine was the most helpful resource I had during recruiting. I will continue to promote it to other students at WashU and elsewhere.”
Jefferies
“Awesome product, helped me crush my technicals in my interviews and land a great role. Thank you, seriously was a huge help.”
Morgan Stanley
“Very helpful to get real-life questions unlike the 400 guide, especially for merger math. Built deeper understanding of key concepts.”
Houlihan Lokey
“Extremely helpful study tool that carried me through the recruitment process from start to end.”
Evercore
“You guys are doing great work over there with IB Vine. Absolute staple for interview prep.”
Rothschild
“IB Vine was incredibly helpful and I am forever thankful for all the help.”
RBC
“IB Mock was amazing - I used it for multiple hours. Also the flashcards and the lessons features on IB Vine were fantastic. Thank you!”
Dragoneer
“IB Vine is such a great platform, really impressive. There is so much value in this. The audio podcasts / mock interview library are pretty incredible.”
Moelis & Co.
“I loved IB Vine. I’m going into Private Capital Advisory (PCA); you have the lessons on there for PCA and that was actually a game changer. I went into those interviews and knew about the core PCA concepts like net asset value, primary fundraising vs. secondary advisory, etc. I swear I was on IB Vine like a few hours a day. The opportunity to have that learning section and go through the questions people submit and everything — there’s no better tool out there. I loved the guides/lessons. The user interface is amazing. The way you’ve simplified it is so spectacular — it’s just so much easier to digest. It’s fun to use too; I’d rather use IB Vine than scroll through a guide. To be honest, I think the product is perfect. I genuinely owe you a big thanks.”
Moelis & Co.
“IB Vine is a tool we really love to use in the club I’m a part of, and there’s really no other resource like it. You guys do a phenomenal job with the question bank. I recruited specifically for Energy banking, and IB Vine was my most used resource for generalist questions (which were about 50% of my interview questions; the rest being Energy-specific); the majority of such questions I saw in interviews were at least similar (if not the same) to the ones on IB Vine.”
Perella Weinberg
“Once I read through the BIWS learning guides, I really didn’t refer to them again. I didn’t even really run through the 400 question guide once I found IB Vine, which I heard about through one of my classmates. We even get a free subscription (like most business schools) to Wall Street Prep, and if I’m being completely honest, I never even logged in to WSP. IB Vine is pretty much the only tool I used (along with our club question bank & mock interviews with peers) and it was invaluable for recruiting.”
Cantor Fitzgerald
“What a platform, made such a huge difference. I did superdays at Evercore, PJT, M. Klein and Barclays among others from a non-target school and did not miss a single technical in any interview process through prepping with IB Vine.”
Barclays
“Very accurate questions and all of the solutions are easy to follow. At least 10 of the questions I studied through this platform appeared in my Round 1 or Superday interviews.”
TD Securities
“THANK YOU SO MUCH IB VINE, I COULD NOT HAVE DONE THIS WITHOUT YOU, SERIOUSLY!!! IB Vine was the best website ever. I spent at least two hours on this daily (seriously) from October through I get my offer in February.”
Citadel
“I’m doing public equities this summer and next. I know the name is “IB Vine” but at the undergrad level a lot of the technicals across public equities are the same as investment banking. I recommend your software to all my friends!”
Piper Sandler
“I loved this site! 1000% this is the best resource I used in the process.”
Lazard
“This was the greatest tool ever. I genuinely enjoyed running through the technicals/behaviorals and it was very helpful!”
Houlihan Lokey
“IB Vine was the most helpful resource I had during recruiting. I will continue to promote it to other students at WashU and elsewhere.”
Jefferies
“Awesome product, helped me crush my technicals in my interviews and land a great role. Thank you, seriously was a huge help.”
Morgan Stanley
“Very helpful to get real-life questions unlike the 400 guide, especially for merger math. Built deeper understanding of key concepts.”
Houlihan Lokey
“Extremely helpful study tool that carried me through the recruitment process from start to end.”
Evercore
“You guys are doing great work over there with IB Vine. Absolute staple for interview prep.”
Rothschild
“IB Vine was incredibly helpful and I am forever thankful for all the help.”
RBC
“IB Mock was amazing - I used it for multiple hours. Also the flashcards and the lessons features on IB Vine were fantastic. Thank you!”
Dragoneer
“IB Vine is such a great platform, really impressive. There is so much value in this. The audio podcasts / mock interview library are pretty incredible.”
Moelis & Co.
“I loved IB Vine. I’m going into Private Capital Advisory (PCA); you have the lessons on there for PCA and that was actually a game changer. I went into those interviews and knew about the core PCA concepts like net asset value, primary fundraising vs. secondary advisory, etc. I swear I was on IB Vine like a few hours a day. The opportunity to have that learning section and go through the questions people submit and everything — there’s no better tool out there. I loved the guides/lessons. The user interface is amazing. The way you’ve simplified it is so spectacular — it’s just so much easier to digest. It’s fun to use too; I’d rather use IB Vine than scroll through a guide. To be honest, I think the product is perfect. I genuinely owe you a big thanks.”
Moelis & Co.
“IB Vine is a tool we really love to use in the club I’m a part of, and there’s really no other resource like it. You guys do a phenomenal job with the question bank. I recruited specifically for Energy banking, and IB Vine was my most used resource for generalist questions (which were about 50% of my interview questions; the rest being Energy-specific); the majority of such questions I saw in interviews were at least similar (if not the same) to the ones on IB Vine.”
Perella Weinberg
“Once I read through the BIWS learning guides, I really didn’t refer to them again. I didn’t even really run through the 400 question guide once I found IB Vine, which I heard about through one of my classmates. We even get a free subscription (like most business schools) to Wall Street Prep, and if I’m being completely honest, I never even logged in to WSP. IB Vine is pretty much the only tool I used (along with our club question bank & mock interviews with peers) and it was invaluable for recruiting.”
Cantor Fitzgerald
“What a platform, made such a huge difference. I did superdays at Evercore, PJT, M. Klein and Barclays among others from a non-target school and did not miss a single technical in any interview process through prepping with IB Vine.”
Barclays
“Very accurate questions and all of the solutions are easy to follow. At least 10 of the questions I studied through this platform appeared in my Round 1 or Superday interviews.”
TD Securities
“THANK YOU SO MUCH IB VINE, I COULD NOT HAVE DONE THIS WITHOUT YOU, SERIOUSLY!!! IB Vine was the best website ever. I spent at least two hours on this daily (seriously) from October through I get my offer in February.”
Citadel
“I’m doing public equities this summer and next. I know the name is “IB Vine” but at the undergrad level a lot of the technicals across public equities are the same as investment banking. I recommend your software to all my friends!”
Piper Sandler
“I loved this site! 1000% this is the best resource I used in the process.”
Lazard
“This was the greatest tool ever. I genuinely enjoyed running through the technicals/behaviorals and it was very helpful!”
Houlihan Lokey
“IB Vine was the most helpful resource I had during recruiting. I will continue to promote it to other students at WashU and elsewhere.”
Jefferies
“Awesome product, helped me crush my technicals in my interviews and land a great role. Thank you, seriously was a huge help.”
Morgan Stanley
“Very helpful to get real-life questions unlike the 400 guide, especially for merger math. Built deeper understanding of key concepts.”
Houlihan Lokey
“Extremely helpful study tool that carried me through the recruitment process from start to end.”
Evercore
“You guys are doing great work over there with IB Vine. Absolute staple for interview prep.”
Rothschild
“IB Vine was incredibly helpful and I am forever thankful for all the help.”
RBC
“IB Mock was amazing - I used it for multiple hours. Also the flashcards and the lessons features on IB Vine were fantastic. Thank you!”
Dragoneer
“IB Vine is such a great platform, really impressive. There is so much value in this. The audio podcasts / mock interview library are pretty incredible.”
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