Hi. Good afternoon. My name is Brian Russo. I'm an Equity Research Analyst at Sidoti. Joining us today is MDU Resources' CEO, David Gooden and CFO, Jason Vollmer.
We'll start off with a twenty to twenty five minute presentation, then open up for a Q and A. Participants can enter questions using the Q and A function at the bottom of their screen. And with that, I'll hand it over to David and Jason for the MDG presentation.
Well, thank you, Brian, and welcome, everyone, to the MDU Resources presentation. Again, I'm Dave Goodin, President and CEO of MDU Resources, as Brian noted. Also joining here is our Vice President and Chief Finance Officer, Jason Balmer as well. You can see our overview slide there. I'll have you turn to our next slide.
Thank you, Emily. Our forward looking statements, certainly our comments here today are based on certain forward looking statements. And I think probably everyone's familiar with this, but understand results may and potentially could vary from what our forward looking statements may look like, but they're, based on the best belief that we have as to what our view of the future would be. Next slide. So an overview of MDU Resources.
If I think of MDU Resources, we are building a strong America. That's our tagline, has been our tagline for the last fifteen plus years, particularly of emphasis over this last five years, and I'll get into some of those reasons why. We're truly an infrastructure business, and we do that through four branded businesses that really span two platforms of business. And the brands are at the bottom of this slide. There are our utility business where we do electricity and natural gas over an eight state footprint serving about 1,150,000 customers.
We also do that through a FERC regulated pipeline business called WBI that serves parts of those same five states that our utility serves, but also helps get processed natural gas to market through long term take or pay contracts with third party producers. We also run a platform of business that's really construction focused, and it's in two segments there. It's construction materials under the brand of Knife River. Knife River is certainly a top 10 aggregate provider in The United States. We serve 15 Western markets inclusive of Hawaii and Alaska.
And we do sand, gravel, ready mix, road construction, asphalt, asphalt oil, bridge work, bridge girders, kind of everything associated with the transportation sector and the heavy materials industries. And in construction services, our other business in our construction platform tends to do those construction activities that tend to surround the electrical industry, both from outside serving utilities in a T and D manner to inside electrical work to major industrial and large commercial customers that typically are Fortune 50 or Fortune 100 customers. Next slide, Emily. A little bit of what we summarizes our investment thesis in MDU Resources. I mentioned us being an infrastructure business.
We really centered on these two platforms of business five years ago or so. So starting here in 2015, we give some five year metrics, whether it's earnings per share, compounded annual growth, EBITDA basis, which you I won't repeat all these numbers. You can certainly look at these at your leisure. But you could see there's, our opinion, and I think shown here, strong financial performance over these last five years in these lines of business. And you can also see that we have a strong balance sheet, BBB plus rated at both Fitch and S and P with stable outlooks on those as well.
And we also have been paying a dividend actually for eighty three consecutive years, increasing that dividend over the past thirty years. And certainly, I will touch on our proven management team. Myself, I've been part of the MD organization for now over thirty eight plus years, and Jason has been with us for over fifteen years, and I'll touch on our CEOs here in a little bit. Next slide, Emily. A quick snapshot of where we're at year to date.
As through June thirty of this year, you would see both operating revenues have ticked up some $90,000,000 on a year over year basis. EBITDA contribution is also up on a year over year basis about $47,000,000 Net income up roughly at $27,000,000 year over year, and then that translates to about $0.14 per share on a year to date basis 2020 versus 2021. Next slide, Emily. Certainly, some of our key story on these two platforms of business that we centered on, like I mentioned, as we really exited our oil and gas business that we've been into for almost well, since the late 1920s actually, we formally exited that in early sixteen. We felt that was well, could be a good business.
It was a large consumer of capital. And also it really subjected us to quite a bit of commodity exposure. And those that invested in us for utility for some predictable returns and kind of expectations of cash flow, quite different than the oil and gas business, where we could be highly successful one year due to the drill bit and maybe not as successful the next year because of commodity price downturns. And so we formally exited the oil and gas. And obviously, we got out of our gas processing business at the same time and just overall reduction to commodity exposure.
And so the three pie charts on the bottom of this page show some of an evolution of our business just since 02/2007, taking us to our still oil and gas in 2013. You could see oil and gas actually at that time contributed 40% of our net income and over $350,000,000 of EBITDA. And you can see today as we've really expanded, if you will, both regulated energy and construction activities. You can see they each take in somewhat balance from year to year approximately half, some years more one the other, but from an EBITDA perspective, roughly half each year and income tends to vary given higher depreciation that we have at the utility business. Next slide, please.
This slide shows our capital expenditures. Again, going back to the 2015 timeframe, we get a sense of where we've been putting our invested dollar. You can see there's really a baseline of regulated investments here shown by the utility. The pipeline would be stacked on top of that. And then the earlier years of this ten year period would show a lighter touch on CapEx, particularly on our construction businesses.
And then you can see we increased our capital investment in the latter years of this. And then looking forward into 2023, we're increasing some of that capital investment at both construction services and construction materials. We've got a five year CapEx budget out in the public markets. We refresh that every November. Our most recent one, which dates back to last November, would show a $3,000,000,000 five year CapEx plan with about 70% of that earmarked to the regulated electric and gas business along with the pipeline.
And then the 30% remaining would be primarily for construction materials with a smaller portion of that being in construction services. And you can see some of the kind of key projects associated with each of those business lines on this chart. Next slide, Emily. So our construction businesses are really a roll up strategy. We originated this strategy, you can see back in 1992, so it's twenty nine years in the making for construction materials.
1997 was the first year that we acquired a business in the construction service industry. A short backdrop, I know we're short on time today, but how did we get into construction materials in the first place? Well, in 1992, we actually had a coal mining business within MDU Resources providing fuel for some of our coal fired power generation plants. Well, we took that expertise and pivoted into the aggregates business with our first acquisition in 'ninety two and then roll forward some 85 plus acquisitions to date. Now we become a top 10 producer of aggregate and aggregate related materials.
Similarly, Construction Services started in 'ninety seven, first acquisition there, really spawned out of our utility operations. And that what do we know how to do? We know how to build power lines. We know how to build pipelines. Let's look to do those for others.
And so it started as an outside T and D roll up strategy. We added inside electrical services along the way, and we do some other related products around the inside electric business. We do a little bit of mechanical. We do a little bit of fire suppression. We also manufacture equipment for the outside transmission distribution work.
And so roll forward 25 plus or minus acquisitions over since 1997 to what we have today as construction services. We'll get into the details of what each of these businesses and kind of some of their key metrics are here in just a minute. Next slide, Emily. Very good. Well, let's dive right into the segment overview.
Next slide. So I've touched a little bit about the regulated energy delivery business. It's really primarily organic growth driven, rate base driven at both electric and natural gas business. And then finding organic pipeline opportunities, if you will, in the interstate pipeline business for large industrial commercial businesses and or finding ways to get natural gas processing plants, get their residue gas, their pipeline quality gas to markets. Those tend to be our primary ways in which we grow our regulated footprint.
And you can see some of the breakdown here between both electric gas pipeline business. On the construction side of the business, really, it throws off oftentimes a lot of cash. And that cash then can be deployed back into those construction businesses, maybe through organic needs and or M and A opportunities, or they can be used to offset, if you will, equity needs at a growing rate base that we've got at our regulated set of businesses as well. We do look for continued M and A activity at our both of our construction businesses. Our business development teams are quite active in that area.
And since about 2017, we've seen kind of a steady asset addition through M and A at both services and materials. Next slide, please. I'll start with construction services. You can see we're nearly a national footprint, all but the far, I'll say almost Northeast, 43 states of operation. We've got a relatively large workforce here, just under 8,000 employees at peak season, a split between the inside and outside electrical business and other construction specialty contract related businesses.
But you can see the mix there of six outside, 12 inside businesses. Particularly, I've noticed, I think, is that we're number five in The U. S. From an electrical contractor perspective. And so I think that helps others to understand that we do have scale in this business and we do have some national reach.
We've got some charts on the bottom of this page you can take a look at, but you can see quite nicely how we've grown, both from a revenue perspective last year, just shy of $2,100,000,000 in revenue, and that then generated about $173,000,000 of EBITDA. Next slide. This business is truly on a record pace. In fact, the last I'll get to a slide here a little bit, but it talks about the last five years of both growth on a top line and a bottom line basis. The second quarter was no exception to that with a record second quarter earnings just shy of $29,000,000 Again, strong work really throughout the economy.
We find that the electrification of the economy is happening and that provides more and more opportunities, whether it's on the T and D side for our outside crews or whether it's in the high-tech, the mission critical, social media, search engine companies, e commerce related businesses that all require more and more sophisticated electronics and computing power. We also had record second quarter revenues at $525,000,000 That was up from the record pace that we're at last year. And then I think from a forward look perspective, the backlog at $1,320,000,000 is also a record. Next slide, Emily. So I've touched earlier about the 25 acquisitions to date.
Recent example would be literally a couple of weeks before the pandemic was declared. This was been February of twenty twenty. We acquired Per Electric. They're based in Fairfax, Virginia. It added another solid footprint for us on the Mid Atlantic area.
It's just outside of DC. One of the large retailers, e commerce businesses, H is located in that general area in the process of. And so we just saw that as a nice growth market for us that, again, adds to more of our national footprint and ability to kind of reach nationally focused companies kind of around The U. S. As well.
And you can see the chart here on segment revenue and how nicely we've grown that business revenue wise as well. Next slide, Emily. When I think of infrastructure, I think here's an example that really cuts across both of our construction businesses, both in service transportation, I mean airport work, we do both runway work, we'll do terminal work so far as electrical related with that. You can see, I mean, electricity is a broad category. Could be T and D work of our own at our own utility, but it also could be, again, building power lines for third parties that, again, we're in many, many states that we are able to do that as well.
And then you get a sense too of kind of the expected CapEx spending. Just to give you a sense, I think, of the runway of opportunity sets that we see in the infrastructure business, both in the construction space and obviously even on our regulated companies as well. And so I think it gives you a sense of what the potential here is, particularly on the construction side. Next slide, Emily. Our other construction business is that one that we pivoted from being a coal mining company to an aggregate business.
Here's our footprint. Kind of think of the Mississippi River and then look west. There's a handful of states we're not in. There's more states in that we're not. And don't forget Hawaii and also Alaska.
We have a very strong presence in those states, in particular in the aggregate space and cement and ready mix space as well. Key to this business is having access to aggregates. You can see we have got 1,100,000,000 tons under reserve. And so that really starts the value chain for us here. And having a source of aggregates allows us an opportunity that we do have some vertical integration in a number of our markets where we're not only a seller of that aggregate, but we may also be providing the lay down and the construction services that surround that, whether it's ridge work, whether that's road work, whether that's subdivision work, whether that's selling ready mix to contractors and housing developers for foundations and driveways and sidewalks and curb and gutter.
We do all of those things in addition to that subdivision, road and base work and asphalt work as well. And then you can see a couple of charts in the bottom, revenue along with EBITDA growth that we've seen last year, a little over $300,000,000 of EBITDA on just shy of $2,200,000,000 in revenue. Next slide, please. Construction Materials second quarter, we had very strong earnings, 51,400,000,000.0. It was just a little bit shy of the record second quarter that we had the year prior.
We did have some additional expenses, mostly in some of the medical related plans that we had. And also there was some stock benefit plans because of the strong company performance came in a little bit higher as well. And partially offsetting that was some lower interest with Jason and his crew finding lower interest rates in this current environment as well. Strong second quarter revenues at 600,000,000 and almost $34,000,000 certainly up from a year ago as well. And in particular, our backlog here was at a really strong level, up slightly from the year before, a little over $912,000,000 Next slide, please.
I mentioned earlier that it all starts with the aggregates for this business. It is really key. We do not want to be in the construction business without having a source of our own aggregates. Now we may purchase from ourselves, we may purchase from other parties if we find that advantageous in certain situations, but we need to have our own source of aggregate certainly as an option for us to from our lay down services. The bottom part there kind of talks about the overall aggregates industry.
You can see it's a $27,000,000,000 plus or minus addressable market in The U. S. And there really is not alternatives that are currently available. And so it's very much has a competitive advantage when you're able to cite and permit reserves that are within a readily available transportation distance to given markets. And you get some pricing strength there that really in and out of recessions, while demand may slow down at times during recessions, pricing power still really continues.
And so we've seen that to be true even throughout the 2008 and 2009 time frame. And then you get a sense of our volume growth on aggregates on the right side of this chart. Last year, right around 32,000,000 tonnes of sales. Next slide, please. Key to this business is continuing our M and A strategy.
Again, you get a sense here of our continuation of how we started this business. So we've learned what makes good acquisitions. We know what makes good tuck ins and bolt ons. We, on occasion, do make a platform acquisition like we did in the fall of twenty eighteen in Eastern South Dakota. A recent example here would be late in 2020, we acquired the McMurray ready mix assets.
Are South Central, Southeastern Wyoming, came with 100,000,000 tons of reserves over nine or 10 different aggregate sites there as well. We were already in that market to some extent, but this really made us a very solid and significant player and source of material. And we also got I-twenty 9 and I-eighty corridors covered there in the kind of greater Casper, Wyoming area. And it certainly complemented our existing ready mix operations where, again, we were sourcing some of our own rock, but this really added to and complemented. And by the way, it's in an area of The U.
S. That will likely see more and more wind resources being deployed and each of those towers require a fair amount of ready mix if you think of it that way as well. You can see the revenue chart on the right side of the page, certainly nice growth over the years. You can see even 02/2006, some higher revenue years. 02/2006, I think we made about just shy of $85,000,000 in that business.
And on the revenues that we saw last year, we were not quite, but close to double that actually when we think about on a comparative basis, despite the same amount of revenue. So clearly, there's some margin expansion over that period of time. Next slide, please. Moving on to our other platform, our electric and gas business, that eight state footprint, you can see the shaded areas here, shows our service territories from Western Minnesota out to the Puget Sound area. We've been able to steadily grow rate base in this business from you can see the numbers down at $1,700,000,000 to now $4,229,000,000 here as we think into the future by 2025.
And certainly, our EPS growth has followed suit through 2020 as well. Next slide. Second quarter earnings in this business, you can see a $9,600,000 down slightly from the year before. We do have some nonqualified defined or some benefit programs that were a little bit of a hit given the market was so strong in 2020 rebounding off the early days of the pandemic. So those returns would have been found in 2020 where we were absent those in 2021.
But also we've had several rate case outcomes that I would say contributed to a very solid second quarter of twenty twenty one as well. Next slide. Really organic rate base is kind of the key of this business, providing that safe and reliable service to our 1.15 customers. We're forecasting a 5% compounded annual growth over the next five years. We're also benefited by customer growth between 12%.
You can see averaging 1.7% over the last five years. I would say it's on the high end of that 1.2%, maybe a little stronger than that on the gas side and probably on the lower side of that from our electric side of our business. Next slide. And our pipeline business, once upon a time, going back thirty ish years, actually, the pipeline and utility were one business. We separated those back in the mid-1980s.
Now it's solely a FERC regulated interstate pipeline. You can see it spans from Western Minnesota through the Dakotas and into Montana and Wyoming as well. We have the true benefit of having North America's largest storage field in Eastern Montana, which by the way, is kind of right next door to the Bakken Field as well. And it provides a very, I'll say, ready available source for natural gas for the coldest of winter nights that we do experience up here on the Northern Plains. You can see the rate base growth.
Again, this is on a combined basis between electric gas and the pipeline business on the bottom. The segment EPS is solely with WBI and the energy business. You can see we had some strong years in the mid-2000s, storage was used quite heavily. And as we continue to grow the business coming off some lows of 2013 and 2014, we're at $0.19 per share last year. Next slide.
Second quarter earnings up slightly on a year over year basis. This business is very predictable. It's got firm customers, it has firm storage revenues associated with it. It does have firm take or pay contracts when we provide pipeline services for other third party natural gas processing plants. In fact, we serve about three quarters of the natural gas processing plants in and about the Bakken area.
And so clearly, we have a pricing competitive advantage there. And on those projects, we expect a FERC like return. Next slide. And you get a sense of our North Bakken expansion here, which is a keynote project for us this year. I won't read all those bullets, but it's about a $260,000,000 investment that we're right in the midst of constructing.
And then our Wapunin expansion there as well, that will be a 2024 project and an expected investment of about $75,000,000 Next slide. Here's just some financial metrics, our forward guidance all put together in kind of one convenient location. I won't go through this. I know we're running a little short of time. I tend to be proud of our businesses and talk a lot about them, but I'll I'll let you just leave this as a homework assignment.
Next slide. And then we're into the appendix. And so, Brian, I turn it back to you, apologize, but I get a little excited when I talk about our business and at the same time, trying to have a room for a question or two here.
No, that was great. Thank you, David, for the comprehensive overview of the various segments of MD Resources. So we do have a question from the participants. What's your appetite for acquisitions near term and long term? I guess a follow on of your discussion in the construction materials and services segment outlook.
Yes. Our appetite is there. In short, we have business development teams that are quite active in both. Stay tuned in that area. I think some looming tax chain tax law changes are actually tending to spur maybe some owners to think about sooner rather than later in that area.
But at the same time, we need to make sure, that it's the right fit for us. So stay tuned. We have an appetite in both services and materials.
Okay. And I'll just ask a quick question on the regulated utilities, H State footprint. Could you just describe to investors, what that H State footprint offers in terms of diversification, whether it's in terms of regulation, customer growth or demographics as well as weather and also investment opportunities?
Yes. So the eight state footprint really affords its total of 13 jurisdictions between electric, gas, the state commissions and also the FERC, right? So there's quite a bit of a regulatory diversity as we have across those eight States. And clearly we get, some States are more, have forward test case capabilities, some have pipeline tracker capabilities, all have purchase gas adjustments, whether it's monthly or annually, fuel clause adjustments. We don't have all eggs in one basket, if you will, not that there'd be anything bad about having a high concentration in one particular jurisdiction.
But for us, we believe we have good relationships, solid relationships with our regulators certainly. But we're not solely dependent on one outcome in one state. That, again, there's really some risk mitigation when you think about our diversification practice.
Thank you. I don't think we could have a presentation when talking about construction materials and services without touching on material inflation, labor availability, maybe just discuss, David, where how you're positioned there maybe through year to date results and what your full year outlook kind of assumes?
Sure, sure. So we started the year on a guidance of expecting revenues in both services and materials. Actually, guidance is identical. It's 2,100,000,000.0 to $2,300,000,000 of revenue guidance there. And so that's still true in those businesses.
So that we feel good about. We also our businesses, we also guide to margins, and we've said margins in Materials, we expect to be comparable on a year over year basis. So that continues to be true. And also in services, our margins, we say, we expect to be comparable to slightly increasing. So to your inflation question, it's first on everybody's mind.
It's obviously we're seeing it in our businesses, some more pronounced in some areas than others. But at the end of the day, we're really managing those inflationary costs as part of our bid process. And again, we expect to be margins comparable on a year over year basis.
Okay. Well, it looks like we're out of time. So I want to thank David and Jason. David, if you have any closing remarks, you please convey them now, we'll conclude the presentation.
Well, first off, thanks, everybody, for taking some time to hear our story. Again, we're very much an infrastructure business on these two platforms of business between construction materials and services on the construction side and regulated energy delivery on electric, gas, and pipeline side. Thanks for your interest. And if you like any follow-up conversations, please reach out to us via our website. And so with that, thank you, Brian.
Appreciate having us on on this call.
Thank you. This concludes today's presentation. Have a nice day.
Bye bye.