| Natural gas utility sales | $138.8M | $94.18M | $296.4M | $509.45M | $168.14M | $117.01M | $374.86M | $574.82M |
| Natural gas services | $40.68M | $140.38M | $38.58M | $37.2M | $38.94M | $39.36M | $40.92M | $42.93M |
| Service contracts | $9.06M | $9.16M | $9.23M | $9.27M | $9.38M | $9.44M | $9.46M | $9.53M |
| Electricity sales | $9.58M | $10.07M | $5.83M | $4.97M | $6.89M | $9.56M | $5.62M | $5.5M |
| Installations and maintenance | $7.29M | $7.38M | $6.56M | $5.85M | $6.8M | $6.36M | $6.55M | $5.43M |
| Renewable energy certificates | $4.87M | $4.92M | $2.9M | $2.87M | $4.96M | $6.85M | $3.74M | $3.38M |
| Total | $275.64M | $395.78M | $488.36M | $913.03M | $298.95M | $336.08M | $604.85M | $939.4M |
