Operational - Quarterly Summary

 

Q2
2019
Q1
2019
Q4
2018
Q3
2018
Q2
2018
Q1
2018
Q4
2017
Q3
2017

Utilities

               
Natural gas deliveries - end use (Bcf) (1) 20.7 75.4 58.5 10.9 12.0 31.0 24.3 5.9
Natural gas deliveries - transportation (Bcf) (1) 25.2 47.6 52 25.7 10.9 13.4 14.2 10.9
Service sites (thousands) (2) 1,648 1,647 1,643 1,759 580 583 582 576
Degree day variance from normal – SEMCO Gas (%) (3) 14.5  5.7 7.5 (17.8) 14.8 3.0 4.8 5.7
Degree day variance from normal – ENSTAR (%) (3) (16.1) (9.4) (19.6) (31.2) (6.1) (1.7) (8.3) (16.6)
Degree day variance from normal – Washington Gas (%) (3)(4) (44.5) (1.1) 0.4 (4.1)

Midstream

               
Total inlet gas processed (Mmcf/d) (5) 1,417 1,481 1,413 1,333 1,227 1,553 1,424 1,322
Extraction volumes (Bbl/d) (5)(6) 56,990 62,332 64,522 60,945 49,728 74,786 68,306 64,026
Frac spread – realized ($/Bbl) (5)(7) 19.50 16.84 15.84 15.60 14.98 19.01 18.02 14.96
Frac spread – average spot price ($/Bbl) (5)(8) 15.27 11.79 21.00 25.87 22.19 22.25 30.66 21.28
RIPET export volumes (MT) (9) 109,966
Propane Far East Index (FEI) to Mont Belvieu spread (US$/MT) (10) 177
Natural gas optimization inventory (Bcf) 31.9 13.2 35.9 36.7 1.3 2.5 2.6
WGL retail energy marketing – gas sales volumes (Mmcf) 9,360 27,411 20,750 8,155

Power

               
Renewable power sold (GWh) 150 141 233 690 504 126 301 681
Conventionable power sold (GWh) 361 263 985 1,255 642 842 1,059 992
Renewable capacity factor (%) 22.3 12.2 14.6 44.6 51.7 8.1 27.5 70.3
Contracted conventional availability factor (%) (11) 66.7 43.2 97.4 98.5 97.7 94.5 96.3 99.6
WGL retail energy marketing – electricity sales volumes (GWh) 3,125 3,080 2,911 3,000

Notes:

(1) Bcf is one billion cubic feet.
(2) Service sites reflect all service sites of the utilities, including transportation and non-regulated business lines.
(3) A degree day is a measure of coldness, determined daily as the number of degrees the average temperature during the day in question is below 65 degrees Fahrenheit. Degree days for a particular period are determined by adding the degree days incurred during each day of the period. Normal degree days for a particular period are the average of degree days during the prior 15 years for SEMCO Energy Gas Company, during the prior 10 years for ENSTAR, and during the prior 30 years for Washington Gas."
(4) In certain of Washington Gas’ jurisdictions (Virginia and Maryland) there are billing mechanisms in place which are designed to eliminate the effects of variance in customer usage caused by weather and other factors such as conservation. In the District of Columbia, there is no weather normalization billing mechanism nor does it hedge to offset the effects of weather. As a result, colder or warmer weather will result in variances to financial results.
(5) Average for the period.
(6) Includes Harmattan NGL processed on behalf of customers.
(7) Realized frac spread or NGL margin, expressed in dollars per barrel of NGL, is derived from sales recorded by the segment during the period for frac exposed volumes plus the settlement value of frac hedges settled in the period less extraction premiums, divided by the total frac exposed volumes produced during the period.
(8) Average spot frac spread or NGL margin, expressed in dollars per barrel of NGL, is indicative of the average sales price that AltaGas receives for propane, butane and condensate less extraction premiums, before accounting for hedges, divided by the respective frac exposed volumes for the period.
(9) Energy export volumes represents propane volumes exported at RIPET since facility was placed into service in May 2019.
(10) Average propane price spread between Argus Far East Index and Mont Belvieu TET commercial index for May and June 2019.
(11) Calculated as the availability factor contracted under long-term tolling arrangements adjusted for occasions where partial or excess capacity payments have been added or deducted.