Pinned valuation:
This is where it gets spicy. The nature of the beast means a DCF is next to useless. One option is to look back the last two financial years and take the average FCF of $30 million and put a multiple on it - let's be really conservative and say 6x. That would give an implied market cap of $180 million and share price of $0.84. That's 140% upside from here. Full disclosure: I don't think FY25 will be as favourable as FY23 or FY24, but FY26 is prospective.
Incidentally, $180 million is also roughly the replacement value of its fleet. But let's not go there. Let's instead use what management says in the market value of the fleet, which is $120 million. If we calculate Net Tangible Assets off that I get an NTA of $122 million. That implies a share price of $0.57. Still a respectable 63% upside.
What about compared to listed peers? I don't like EBITDA as a heuristic for capital intensive businesses, but it's still widely used. Per below it suggests Mitchell may be undervalued by 100%, with an implied share price of $0.70.

EBITDA multiples are even more widely used in acquisitions, so what might that tell us?

I'm going to exclude Rado on the basis that it looks like an outlier. The rig multiple on this deal is lower than Mitchell paid for the distressed assets in 2014 and 2015.
On that basis the EBITDA multiple implies a valuation for Mitchell of $0.75. The rig multiple is significantly higher, suggesting a deal value closer to $200 million and an implied share price of $0.93. However, I acknowledge this is a less reliable indicator with muddy causation and I won't use this in the basis of the valuation.
In the absence of a better measure I'm going to average four of the measures above to approximate the valuation.

On that basis it's fracking cheap!
Excellent work there @Noddy74 - much appreciated and I found heaps of value in your detailed analysis of MSV today. I was aware of them previously and have actually been doing some research into another mining services company today - MLG Oz (ASX: MLG) - see here: https://www.mlgoz.com.au/ - however it soon became very obvious that MSV was a far superior company with a heap of positives including the capital management that you've outlined - with both an active share buyback and a trailing dividend yield of over 10%, albeit unfranked.
What prompted me to look into MLG was this announcement that NST posted today: MLG Seals $45m of Contracts with Northern Star (.PDF)
MLG have a few things going for them including superb insider alignment with the founder, Murray Leahy, who is also their CEO and MD, owning 73 million shares, being half (49.71%) of the company, however they do have debt as well as single digit ROE, plus lumpy earnings in their short history as a listed company - lumpy earnings often being par for the course with contract mining companies unless they have a stable client base with a lot of multi-year recurring revenue contracts, which is where I believe MLG Oz is heading now.
Short version is that Mitchell Services (MSV) screens a lot better. All of the MSV directors have skin in the game, with Nathan Mitchell, their Executive Chairman, owning 42,228,408 MSV shares, being just under 20% of the company.
Both companies are small and similar in size, with MSV having a $75.60M market cap and MLG having an $84.14M m/cap.
However MLG are clearly not producing the cashflow that MSV are, and are therefore not in a position to return their excess cash to shareholders as MSV are through both above-market dividends and their active share buyback. By contrast, MLG Oz (MLG) haven't paid any dividends since October, 2021.
I know these companies are different and should not be compared side-by-side as I have been doing, because the services they provide are not the same - drilling vs. contract mining - however I am just illustrating how the company you have highlighted today @Noddy74 is far superior to a similar sized (small) mining services provider that I was already looking at today.
Accordingly, in my largest real money portfolio, I sold my remaining CYL (Catalyst Metals) at $3.26 late this afternoon as well as my remaining Meeka Metals (MEK) shares @ $0.105 (10.5 cps), locking in some juicy profits on both, especially MEK where I almost doubled my money, and I rotated that money into MSV.
CYL was a short-term trade based on a MarketScreener.com (premium) screen I ran a couple of weeks ago that highlighted them as being good value, having excellent fundamentals all heading in the right direction and underappreciated within the gold sector - and that trade panned out well for me in a very short timeframe - and Meeka is a company that likely still has significant upside based on expected regular positive newsflow (which in turn is based on the newsflow they've provided recently coupled with their recently shared timeline for their Murchison Project development near Meekatharra) - however I wanted to lock in the significant profits I was sitting on already with MEK and rotate that into a company with a less volatile share price that will provide me with some dividend income within the next few months, which MSV certainly should.
If MEK retraces after damn near going vertical recently, I'll likely jump back in, but I get the feeling there's already significant upside already priced in with MEK and that combined with the positive sentiment across the Aussie gold sector today provided me with a profit taking opp, so I took it. I was being fearful when others were greedy today with MEK & CYL, IMO.
I have also sold all of my DEG (De Grey Mining, under takeover offer from NST which I continue to hold) here on SM today at a profit and topped up a number of other positions as well as adding MSV to my Strawman.com portfolio.
I did the same IRL yesterday with DEG, fully exiting in my largest portfolio to top up on a few dividend paying companies like RMS and WGB, however I still hold DEG in my SMSF which is a ploy to get around the 20% limit on individual company weightings rule at the time of purchase; I hold both NST and DEG in my super and when the scrip-for-scrip takeover goes through in a few months I will hold a LOT of NST, which is even better for me having paid around the $1.90 mark (average price paid) for most of my DEG - which closed today at $2.01 - and the takeover offer implied a price of $2.08 at the time it was announced late last year, based on the NST share price.
Thanks again @Noddy74. Excellent work on MSV, comprehensive, compelling, much appreciated!