Operational - Quarterly Summary

 

Q1
2020
Q4
2019
Q3
2019
Q2
2019
Q1
2019

Utilities

         
Natural gas deliveries – end use (Bcf) (1) 66.6 52.2 11.1 20.7 75.4
Natural gas deliveries – transportation (Bcf) (1) 40.5 38.3 23.3 25.2 47.6
Service sites (thousands) (2) 1,661 1,653 1,647 1,648 1,647
Degree day variance from normal – SEMCO Gas (%) (3) (11.4) 4.3 (47.2) 14.5  5.7
Degree day variance from normal – ENSTAR (%) (3) 16.1 (20.6) (42.8) (16.1) (9.4)
Degree day variance from normal – Washington Gas (%) (3) (4) (17.1) (3.2) (44.5) (1.1)
WGL retail energy marketing – gas sales volumes (Mmcf) 21,916 20,131 6,476 9,360 27,411
WGL retail energy marketing – electricity sales volumes (GWh) 3,723 3,291 3,723 3,125 3,080

Midstream

         
RIPET export volumes (Bbls/d) (5) 35,141 36,394 36,225 31,711
Total inlet gas processed (Mmcf/d) (6) 1,393 1,413 1,307 1,417 1,481
Extracted ethane volumes (Bbls/d) (6) 29,932 25,951 22,857 23,046 23,431
Extracted NGL volumes (Bbls/d) (6) (7)​​​​​​​ 32,495 32,313 30,933 35,420 37,643
Fractionation volumes (Bbls/d) (6) (8) 21,079 20,310 24,026 19,391 16,828
Frac spread – realized ($/Bbl) (6) (9)​​​​​​​ 11.76 16.54 17.12 19.50 16.84
Frac spread – average spot price ($/Bbl) (6) (10)​​​​​​​ 2.04 8.29 9.17 15.27 11.79
Propane Far East Index to Mont Belvieu spread (US$/Bbl) (11) 16.23 17.95 12.00 14.27
Natural gas optimization inventory (Bcf) 34.3 41.4 35.7 31.9 13.2

Notes:

(1) Bcf is one billion cubic feet. 
(2) Service sites reflect all of the 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 Gas, 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 Washington Gas hedge to offset the effects of weather. As a result, colder or warmer weather will result in variances to financial results.
(5) Represents propane volumes exported at RIPET since facility was placed into service in May 2019.  
(6) Average for the period.  
(7) NGL volumes refer to propane, butane and condensate. 
(8) Represents fractionation volumes at Harmattan, Younger and North Pine.
(9) 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. 
(10) 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. 
(11) Average propane price spread between Argus Far East Index and Mont Belvieu TET commercial index for the period beginning May 2019.