Thank you, Rick, and good morning, everyone. We appreciate you joining us for this call. I'm joined here on the call with several members of our senior management team, including Davis Ravnaas, our President and Chief Financial Officer; Matt Daly, our Chief Operating Officer; and Blayne Rhynsburger, our Controller. I will begin today's discussion by providing comments about our third quarter before turning the call over to Davis to walk you through our financials in more detail.
For the third quarter, Kimbell had record oil, natural gas and natural gas liquids revenue, record consolidated adjusted EBITDA, record net income and record cash available for distribution per common unit. The company was positively impacted by surging commodity prices, especially natural gas, that contributed to our record quarter.
The operational momentum we identified in our last call continued, as evidenced by the 20% increase in our rig count at the end of the quarter compared to the end of the second quarter, led by natural gas-driven basins such as the Haynesville and Mid-Con. Our operational momentum today resulted from seeds planted in July 2018 with the completion of the Haymaker acquisition, which provided a world-class mineral position in the core areas of the natural gas-heavy Haynesville shale. That transformational acquisition more than 3 years ago is proving very fortuitous in this market environment.
For the third quarter, our run rate average daily production was 14,083 BOE per day on a 6:1 basis and was composed of approximately 62% from natural gas and 38% from liquids, of which 25% from oil and 13% from NGLs. The prior-period production recognized in the third quarter of 2021 was primarily due to new wells outperforming previous estimates, reflecting our continued conservative approach for new wells.
The combined momentum of improved pricing and production as well as controlling costs drove the positive operating leverage and expanded consolidated adjusted EBITDA to a record $33 million, an increase of 18% compared to the second quarter. We also had record cash available for distribution for the third quarter of $0.50 per common unit and declared a distribution of $0.37 per common unit or 75% of cash available for distribution, which was a 19% increase sequentially from Q2.
Tailwinds continue in the global energy sector and fundamentals across the U.S. energy complex continue to improve. Inventory levels are low, rig count growth is tepid and operators continue to focus on balance sheet strength and free cash flow generation. Having said that, we do see drilling activity from private operators outpacing that of public company operators as they move more quickly to capitalize on higher commodity pricing and build scale.
As of the end of the third quarter, private operators comprised 43% and public operators 57% of our active rig count. Overall, we believe this energy up cycle will last longer than previous cycles. Also, we believe that modest increase in investment that is expected in 2022 will only serve to largely replace the significant depletion in drilled but uncompleted wells in the U.S. rather than providing much in the way of oil and natural gas production growth in the Lower 48 next year.
The oil and natural gas royalty sector is particularly well positioned to benefit from this cycle since we participate in the upside from commodity price inflation, but do not experience the cost inflation that is currently being experienced by both the energy services and upstream sectors. We remain very bullish about the future of our space.
In particular, we are optimistic regarding our differentiated business strategy that has consistently demonstrated a strong track record of production stability in our legacy assets as well as acquiring strategic portfolios, such as our Haymaker acquisition in 2018, in a disciplined fashion across active basins. We believe our low PDP decline rate and diversified royalty portfolio is a core competitive advantage for our company in the mineral and royalty space.
In addition, we plan to remain focused on our role as a major consolidator in the highly fragmented U.S. oil and gas royalty sector, assembling a high-quality, low PDP decline and diversified royalty portfolio, generating recurring cash flow with growth potential and no capital requirements. This year has been challenging for acquisitions in the minerals and royalty industry.
In fact, there has only been one significant publicly announced minerals transaction year-to-date in our space on the public side. We've been in this business a long time and have seen many different market cycles. This current situation is not necessarily uncommon. The minerals industry does go through cycles, where the bid-ask spread is so significant that people just aren't able to get deals done.
However, history has demonstrated that the pendulum will swing the other way and often very quickly. And when it does, we'll be ready. Our long-term vision for Kimbell since inception has been a focus on sustainability and disciplined growth, and we will continue to be highly opportunistic in this mission.
With modest growth forecasted for well production in the Lower 48, we believe that our production stability and flat PDP decline rates will be a winning theme for energy investing rather than the hyper-growth models of the past. As we disclosed previously, the results of our inventory evaluation of our portfolio, in coordination with Ryder Scott, a global engineering firm, illustrated that it will take a relatively low number of new net wells to maintain flat production due to our superior PDP decline curve.
The results from this evaluation demonstrated that only approximately 4.5 net wells per year are needed to keep our production flat. And at this level, we have approximately '19 years of drilling inventory. This strengthens our belief and confidence that Kimbell was built for these conditions. We look forward to finishing the year strong and continue to be very excited about the future of Kimbell and its prospects for delivering unitholder value for years to come.
And with that, I'll now turn the call over to Davis.