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Side-by-side financial comparison of MDU RESOURCES GROUP INC (MDU) and UNITED STATES LIME & MINERALS INC (USLM). Click either name above to swap in a different company.

MDU RESOURCES GROUP INC is the larger business by last-quarter revenue ($522.6M vs $87.9M, roughly 5.9× UNITED STATES LIME & MINERALS INC). UNITED STATES LIME & MINERALS INC runs the higher net margin — 34.7% vs 14.6%, a 20.1% gap on every dollar of revenue. On growth, UNITED STATES LIME & MINERALS INC posted the faster year-over-year revenue change (9.8% vs -1.6%). UNITED STATES LIME & MINERALS INC produced more free cash flow last quarter ($25.7M vs $-336.0M). Over the past eight quarters, UNITED STATES LIME & MINERALS INC's revenue compounded faster (10.8% CAGR vs -5.7%).

MDU Resources Group, Inc. is a U.S.-based corporation supplying products and services to regulated energy delivery and utilities related construction materials and services businesses. It is headquartered in Bismarck, North Dakota, and operates in 48 states.

United States Lime & Minerals Inc is a leading US-based natural resources enterprise that produces high-calcium lime, dolomitic lime, limestone and related mineral products. Its core client segments cover infrastructure construction, steel manufacturing, agricultural soil amendment, environmental emission control and industrial processing, serving customers across North America.

MDU vs USLM — Head-to-Head

Bigger by revenue
MDU
MDU
5.9× larger
MDU
$522.6M
$87.9M
USLM
Growing faster (revenue YoY)
USLM
USLM
+11.4% gap
USLM
9.8%
-1.6%
MDU
Higher net margin
USLM
USLM
20.1% more per $
USLM
34.7%
14.6%
MDU
More free cash flow
USLM
USLM
$361.7M more FCF
USLM
$25.7M
$-336.0M
MDU
Faster 2-yr revenue CAGR
USLM
USLM
Annualised
USLM
10.8%
-5.7%
MDU

Income Statement — Q4 2025 vs Q4 2025

Metric
MDU
MDU
USLM
USLM
Revenue
$522.6M
$87.9M
Net Profit
$76.3M
$30.5M
Gross Margin
48.0%
Operating Margin
20.5%
41.0%
Net Margin
14.6%
34.7%
Revenue YoY
-1.6%
9.8%
Net Profit YoY
38.4%
13.2%
EPS (diluted)
$0.37
$1.06

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
MDU
MDU
USLM
USLM
Q4 25
$522.6M
$87.9M
Q3 25
$313.6M
$102.0M
Q2 25
$348.7M
$91.5M
Q1 25
$678.0M
$91.3M
Q4 24
$531.0M
$80.1M
Q3 24
$290.7M
$89.4M
Q2 24
$343.1M
$76.5M
Q1 24
$588.2M
$71.7M
Net Profit
MDU
MDU
USLM
USLM
Q4 25
$76.3M
$30.5M
Q3 25
$18.3M
$38.8M
Q2 25
$13.8M
$30.8M
Q1 25
$82.0M
$34.1M
Q4 24
$55.2M
$27.0M
Q3 24
$64.6M
$33.4M
Q2 24
$60.4M
$26.1M
Q1 24
$100.9M
$22.4M
Gross Margin
MDU
MDU
USLM
USLM
Q4 25
48.0%
Q3 25
51.2%
Q2 25
45.8%
Q1 25
50.6%
Q4 24
44.3%
Q3 24
48.2%
Q2 24
45.5%
Q1 24
42.7%
Operating Margin
MDU
MDU
USLM
USLM
Q4 25
20.5%
41.0%
Q3 25
12.7%
45.3%
Q2 25
8.7%
39.0%
Q1 25
16.6%
43.7%
Q4 24
17.8%
38.8%
Q3 24
12.0%
42.6%
Q2 24
11.5%
39.1%
Q1 24
16.4%
35.9%
Net Margin
MDU
MDU
USLM
USLM
Q4 25
14.6%
34.7%
Q3 25
5.8%
38.0%
Q2 25
4.0%
33.7%
Q1 25
12.1%
37.4%
Q4 24
10.4%
33.7%
Q3 24
22.2%
37.3%
Q2 24
17.6%
34.0%
Q1 24
17.2%
31.3%
EPS (diluted)
MDU
MDU
USLM
USLM
Q4 25
$0.37
$1.06
Q3 25
$0.09
$1.35
Q2 25
$0.07
$1.07
Q1 25
$0.40
$1.19
Q4 24
$0.26
$-2.20
Q3 24
$0.32
$1.16
Q2 24
$0.30
$0.91
Q1 24
$0.49
$3.92

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
MDU
MDU
USLM
USLM
Cash + ST InvestmentsLiquidity on hand
$28.2M
$371.1M
Total DebtLower is stronger
$2.7B
$0
Stockholders' EquityBook value
$2.8B
$630.8M
Total Assets
$7.6B
$681.0M
Debt / EquityLower = less leverage
0.97×
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MDU
MDU
USLM
USLM
Q4 25
$28.2M
$371.1M
Q3 25
$75.9M
$349.5M
Q2 25
$58.8M
$319.9M
Q1 25
$59.5M
$300.6M
Q4 24
$66.9M
$278.0M
Q3 24
$88.3M
$255.0M
Q2 24
$78.8M
$222.5M
Q1 24
$72.7M
$207.0M
Total Debt
MDU
MDU
USLM
USLM
Q4 25
$2.7B
$0
Q3 25
$2.4B
$0
Q2 25
$2.2B
$0
Q1 25
$2.2B
$0
Q4 24
$2.3B
$0
Q3 24
$2.3B
$0
Q2 24
$2.3B
$0
Q1 24
$2.3B
$0
Stockholders' Equity
MDU
MDU
USLM
USLM
Q4 25
$2.8B
$630.8M
Q3 25
$2.7B
$602.3M
Q2 25
$2.7B
$563.3M
Q1 25
$2.7B
$532.2M
Q4 24
$2.7B
$497.7M
Q3 24
$3.1B
$474.2M
Q2 24
$3.0B
$441.1M
Q1 24
$3.0B
$415.3M
Total Assets
MDU
MDU
USLM
USLM
Q4 25
$7.6B
$681.0M
Q3 25
$7.2B
$652.8M
Q2 25
$6.9B
$607.4M
Q1 25
$7.0B
$585.3M
Q4 24
$7.0B
$543.2M
Q3 24
$8.2B
$521.8M
Q2 24
$8.0B
$484.2M
Q1 24
$7.8B
$464.0M
Debt / Equity
MDU
MDU
USLM
USLM
Q4 25
0.97×
0.00×
Q3 25
0.86×
0.00×
Q2 25
0.80×
0.00×
Q1 25
0.80×
0.00×
Q4 24
0.85×
0.00×
Q3 24
0.76×
0.00×
Q2 24
0.75×
0.00×
Q1 24
0.76×
0.00×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
MDU
MDU
USLM
USLM
Operating Cash FlowLast quarter
$80.6M
$45.6M
Free Cash FlowOCF − Capex
$-336.0M
$25.7M
FCF MarginFCF / Revenue
-64.3%
29.2%
Capex IntensityCapex / Revenue
79.7%
22.6%
Cash ConversionOCF / Net Profit
1.06×
1.49×
TTM Free Cash FlowTrailing 4 quarters
$-297.0M
$102.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MDU
MDU
USLM
USLM
Q4 25
$80.6M
$45.6M
Q3 25
$57.9M
$45.9M
Q2 25
$117.4M
$34.0M
Q1 25
$217.5M
$39.4M
Q4 24
$60.5M
$38.6M
Q3 24
$140.2M
$39.0M
Q2 24
$136.5M
$21.2M
Q1 24
$165.1M
$27.2M
Free Cash Flow
MDU
MDU
USLM
USLM
Q4 25
$-336.0M
$25.7M
Q3 25
$-121.9M
$31.3M
Q2 25
$36.5M
$20.8M
Q1 25
$124.4M
$24.6M
Q4 24
$-95.8M
$27.6M
Q3 24
$673.0K
$33.9M
Q2 24
$26.5M
$16.8M
Q1 24
$48.1M
$20.3M
FCF Margin
MDU
MDU
USLM
USLM
Q4 25
-64.3%
29.2%
Q3 25
-38.9%
30.7%
Q2 25
10.5%
22.7%
Q1 25
18.4%
26.9%
Q4 24
-18.0%
34.4%
Q3 24
0.2%
37.9%
Q2 24
7.7%
21.9%
Q1 24
8.2%
28.4%
Capex Intensity
MDU
MDU
USLM
USLM
Q4 25
79.7%
22.6%
Q3 25
57.3%
14.4%
Q2 25
23.2%
14.5%
Q1 25
13.7%
16.3%
Q4 24
29.4%
13.8%
Q3 24
48.0%
5.8%
Q2 24
32.0%
5.7%
Q1 24
19.9%
9.5%
Cash Conversion
MDU
MDU
USLM
USLM
Q4 25
1.06×
1.49×
Q3 25
3.16×
1.18×
Q2 25
8.52×
1.10×
Q1 25
2.65×
1.16×
Q4 24
1.10×
1.43×
Q3 24
2.17×
1.17×
Q2 24
2.26×
0.81×
Q1 24
1.64×
1.21×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

MDU
MDU

Natural Gas Distribution$382.8M73%
Commercial Utility Sales$42.7M8%
Residential Utility Sales$33.7M6%
Pipelineand Midstream$31.1M6%
Natural Gas Transportation$17.2M3%
Industrial Utility Sales$10.1M2%
Natural Gas Storage$6.4M1%
Other Utility Sales$1.9M0%

USLM
USLM

Segment breakdown not available.

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