Document Format Files
| Seq | Description | Document | Type | Size |
|---|---|---|---|---|
| 1 | 20-F | d548191d20f.htm | 20-F | 4608893 |
| 2 | EX-2.9 | d548191dex29.htm | EX-2.9 | 105169 |
| 3 | EX-12.1 | d548191dex121.htm | EX-12.1 | 9738 |
| 4 | EX-12.2 | d548191dex122.htm | EX-12.2 | 9810 |
| 5 | EX-13 | d548191dex13.htm | EX-13 | 5620 |
| 6 | GRAPHIC | g548191expage01.jpg | GRAPHIC | 761869 |
| 7 | GRAPHIC | g548191expage02.jpg | GRAPHIC | 1061815 |
| 8 | GRAPHIC | g548191expage03.jpg | GRAPHIC | 892341 |
| 9 | GRAPHIC | g548191expage04.jpg | GRAPHIC | 888116 |
| 10 | GRAPHIC | g548191expage05.jpg | GRAPHIC | 945009 |
| 11 | GRAPHIC | g548191expage06.jpg | GRAPHIC | 1003760 |
| 12 | GRAPHIC | g548191expage07.jpg | GRAPHIC | 1055928 |
| 13 | GRAPHIC | g548191expage08.jpg | GRAPHIC | 965872 |
| 14 | GRAPHIC | g548191expage09.jpg | GRAPHIC | 1000664 |
| 15 | GRAPHIC | g548191expage10.jpg | GRAPHIC | 1030144 |
| 16 | GRAPHIC | g548191expage11.jpg | GRAPHIC | 1122784 |
| 17 | GRAPHIC | g548191expage12.jpg | GRAPHIC | 926417 |
| 18 | GRAPHIC | g548191expage13.jpg | GRAPHIC | 922950 |
| 19 | GRAPHIC | g548191expage14.jpg | GRAPHIC | 1024038 |
| 20 | GRAPHIC | g548191expage15.jpg | GRAPHIC | 1071862 |
| 21 | GRAPHIC | g548191expage16.jpg | GRAPHIC | 1075259 |
| 22 | GRAPHIC | g548191expage17.jpg | GRAPHIC | 1036480 |
| 23 | GRAPHIC | g548191expage18.jpg | GRAPHIC | 1066144 |
| 24 | GRAPHIC | g548191expage19.jpg | GRAPHIC | 1003005 |
| 25 | GRAPHIC | g548191expage20.jpg | GRAPHIC | 1022779 |
| 26 | GRAPHIC | g548191expage21.jpg | GRAPHIC | 1097505 |
| 27 | GRAPHIC | g548191expage22.jpg | GRAPHIC | 1078429 |
| 28 | GRAPHIC | g548191expage23.jpg | GRAPHIC | 1027410 |
| 29 | GRAPHIC | g548191expage24.jpg | GRAPHIC | 1061469 |
| 30 | GRAPHIC | g548191expage25.jpg | GRAPHIC | 1048643 |
| 31 | GRAPHIC | g548191expage26.jpg | GRAPHIC | 941386 |
| 32 | GRAPHIC | g548191expage27.jpg | GRAPHIC | 949481 |
| 33 | GRAPHIC | g548191expage28.jpg | GRAPHIC | 1053473 |
| 34 | GRAPHIC | g548191expage29.jpg | GRAPHIC | 966551 |
| 35 | GRAPHIC | g548191expage30.jpg | GRAPHIC | 1023142 |
| 36 | GRAPHIC | g548191expage31.jpg | GRAPHIC | 1033322 |
| 37 | GRAPHIC | g548191expage32.jpg | GRAPHIC | 1038248 |
| 38 | GRAPHIC | g548191expage33.jpg | GRAPHIC | 693434 |
| 39 | GRAPHIC | g548191expage34.jpg | GRAPHIC | 956721 |
| 40 | GRAPHIC | g548191expage35.jpg | GRAPHIC | 1044616 |
| 41 | GRAPHIC | g548191expage36.jpg | GRAPHIC | 1010096 |
| 42 | GRAPHIC | g548191expage37.jpg | GRAPHIC | 1050348 |
| 43 | GRAPHIC | g548191expage38.jpg | GRAPHIC | 1023112 |
| 44 | GRAPHIC | g548191expage39.jpg | GRAPHIC | 1016562 |
| 45 | GRAPHIC | g548191expage40.jpg | GRAPHIC | 1067603 |
| 46 | GRAPHIC | g548191expage41.jpg | GRAPHIC | 1120406 |
| 47 | GRAPHIC | g548191expage42.jpg | GRAPHIC | 989822 |
| 48 | GRAPHIC | g548191pag_60new.jpg | GRAPHIC | 68207 |
| 49 | GRAPHIC | g548191page42.jpg | GRAPHIC | 62411 |
| 50 | GRAPHIC | g548191page49.jpg | GRAPHIC | 214300 |
| 51 | GRAPHIC | g548191page60.jpg | GRAPHIC | 61890 |
| 52 | GRAPHIC | g548191page62a.jpg | GRAPHIC | 132535 |
| 53 | GRAPHIC | g548191page62b.jpg | GRAPHIC | 87105 |
| 54 | GRAPHIC | g548191page73a.jpg | GRAPHIC | 45845 |
| 55 | GRAPHIC | g548191page73b.jpg | GRAPHIC | 40343 |
| 56 | GRAPHIC | g548191page77.jpg | GRAPHIC | 349722 |
| 57 | GRAPHIC | g548191page78.jpg | GRAPHIC | 311604 |
| 58 | GRAPHIC | g548191page89.jpg | GRAPHIC | 100453 |
| 59 | GRAPHIC | g548191page90.jpg | GRAPHIC | 42872 |
| 60 | GRAPHIC | g548191page92.jpg | GRAPHIC | 174401 |
| Complete submission text file | 0001193125-18-110362.txt | 64969105 |
IRS No.: 000000000 | Fiscal Year End: 1231
Type: 20-F | Act: 34 | File No.: 001-14950 | Film No.: 18744327
SIC: 4924 Natural Gas Distribution
