HUERFANITO UNIT #072
API 3004506226 · San Juan County, New Mexico · Aztec district · Federal lease
ActiveGasPlugged 9999-12-31
API
3004506226
Operator
HILCORP ENERGY COMPANY
Location (PLSS)
K-28-27N-09W
Spudded
1962-08-04
Measured depth
6,955 ft
True vertical depth
6,955 ft
Pools
[71599] BASIN DAKOTA (PRORATED GAS); [71629] BASIN FRUITLAND COAL (GAS)
Monthly production
402 months filed with the Oil Conservation Division, Dec 1992 to Jun 2026. Oil and water are barrels; gas is MCF — the three are never added.
Cumulative oil
16,907 bbl
Cumulative gas
2,456,855 MCF
Cumulative water
910 bbl
| Month | Oil (bbl) | Gas (MCF) | Water (bbl) | Days |
|---|---|---|---|---|
| Jun 2026 | — | 3,165 | — | 30 |
| May 2026 | — | 3,152 | — | 31 |
| Apr 2026 | — | 2,944 | — | 30 |
| Mar 2026 | — | 3,030 | — | 31 |
| Feb 2026 | — | 2,672 | — | 28 |
| Jan 2026 | — | 2,513 | — | 26 |
| Dec 2025 | — | 2,981 | — | 30 |
| Nov 2025 | — | 2,301 | — | 25 |
| Oct 2025 | — | 2,548 | — | 27 |
| Sep 2025 | — | 2,443 | — | 30 |
| Aug 2025 | — | 2,863 | — | 31 |
| Jul 2025 | — | 2,894 | — | 31 |
| Jun 2025 | — | 2,828 | — | 30 |
| May 2025 | — | 2,969 | — | 31 |
| Apr 2025 | — | 3,057 | — | 30 |
| Mar 2025 | — | 1,322 | — | 31 |
| Feb 2025 | — | 1,505 | — | 19 |
| Jan 2025 | — | 2,152 | — | 27 |
| Dec 2024 | — | 2,603 | — | 30 |
| Nov 2024 | — | 1,989 | — | 27 |
| Oct 2024 | — | 2,478 | — | 31 |
| Sep 2024 | — | 2,286 | — | 24 |
| Aug 2024 | — | 2,901 | — | 31 |
| Jul 2024 | — | 2,597 | — | 31 |
| Jun 2024 | — | 2,602 | 60 | 30 |
| May 2024 | — | 2,826 | — | 31 |
| Apr 2024 | — | 2,549 | — | 30 |
| Mar 2024 | — | 2,606 | — | 30 |
| Feb 2024 | — | 2,514 | — | 28 |
| Jan 2024 | — | 2,477 | — | 31 |
| Dec 2023 | — | 2,830 | 80 | 31 |
| Nov 2023 | — | 2,849 | — | 30 |
| Oct 2023 | — | 2,905 | — | 30 |
| Sep 2023 | — | 2,366 | — | 25 |
| Aug 2023 | — | 2,147 | — | 23 |
| Jul 2023 | — | 2,986 | — | 31 |
| Jun 2023 | — | 2,968 | — | 30 |
| May 2023 | — | 3,091 | 80 | 31 |
| Apr 2023 | — | 2,884 | — | 30 |
| Mar 2023 | — | 2,866 | — | 31 |
| Feb 2023 | — | 2,027 | — | 24 |
| Jan 2023 | — | 2,309 | — | 31 |
| Dec 2022 | — | 2,429 | 80 | 30 |
| Nov 2022 | — | 2,370 | — | 29 |
| Oct 2022 | — | 2,761 | — | 31 |
| Sep 2022 | — | 2,581 | — | 30 |
| Aug 2022 | — | 2,817 | — | 31 |
| Jul 2022 | — | 3,102 | — | 31 |
| Jun 2022 | — | 3,150 | — | 30 |
| May 2022 | — | 3,234 | — | 31 |
| Apr 2022 | — | 3,169 | — | 30 |
| Mar 2022 | — | 3,362 | — | 31 |
| Feb 2022 | — | 3,015 | 40 | 28 |
| Jan 2022 | — | 3,487 | — | 31 |
| Dec 2021 | — | 3,420 | — | 31 |
| Nov 2021 | — | 3,515 | — | 30 |
| Oct 2021 | — | 3,598 | — | 31 |
| Sep 2021 | — | 1,697 | — | 30 |
| Aug 2021 | — | 1,658 | — | 31 |
| Jul 2021 | — | 1,619 | — | 30 |
| Jun 2021 | — | 1,481 | — | 30 |
| May 2021 | — | 1,576 | — | 31 |
| Apr 2021 | — | 1,406 | — | 30 |
| Mar 2021 | — | 1,649 | — | 31 |
| Feb 2021 | — | 1,333 | — | 28 |
| Jan 2021 | — | 1,615 | — | 30 |
| Dec 2020 | — | 1,571 | — | 30 |
| Nov 2020 | — | 1,649 | — | 30 |
| Oct 2020 | — | 1,769 | — | 31 |
| Sep 2020 | — | 1,797 | — | 30 |
| Aug 2020 | — | 2,001 | — | 31 |
| Jul 2020 | — | 2,165 | — | 31 |
| Jun 2020 | — | 2,266 | — | 30 |
| May 2020 | — | 2,351 | — | 31 |
| Apr 2020 | — | 2,422 | — | 29 |
| Mar 2020 | — | 2,714 | — | 31 |
| Feb 2020 | — | 2,350 | 63 | 29 |
| Jan 2020 | — | 2,632 | — | 30 |
| Dec 2019 | — | 2,401 | — | 28 |
| Nov 2019 | — | 2,848 | — | 30 |
| Oct 2019 | — | 3,275 | — | 31 |
| Sep 2019 | — | 3,694 | — | 30 |
| Aug 2019 | — | 2,868 | — | 31 |
| Jul 2019 | — | 3,740 | — | 31 |
| Jun 2019 | — | 3,603 | — | 30 |
| May 2019 | — | 3,959 | 80 | 31 |
| Apr 2019 | — | 3,838 | — | 30 |
| Mar 2019 | — | 4,046 | — | 31 |
| Feb 2019 | — | 3,629 | — | 28 |
| Jan 2019 | — | 2,664 | — | 31 |
| Dec 2018 | — | 3,713 | — | 31 |
| Nov 2018 | — | 3,900 | — | 29 |
| Oct 2018 | — | 3,204 | — | 31 |
| Sep 2018 | — | 3,134 | — | 30 |
| Aug 2018 | — | 3,274 | — | 30 |
| Jul 2018 | — | 3,407 | — | 31 |
| Jun 2018 | — | 3,620 | — | 30 |
| May 2018 | — | 3,993 | 65 | 31 |
| Apr 2018 | — | 3,700 | — | 29 |
| Mar 2018 | — | 4,032 | — | 31 |
| Feb 2018 | — | 3,461 | — | 27 |
| Jan 2018 | — | 4,190 | 37 | 31 |
| Dec 2017 | — | 4,034 | — | 30 |
| Nov 2017 | — | 4,050 | — | 29 |
| Oct 2017 | — | 4,065 | — | 30 |
| Sep 2017 | — | 4,053 | 74 | 29 |
| Aug 2017 | — | 0 | — | 0 |
| Jul 2017 | — | 4,161 | — | 31 |
| Jun 2017 | — | 3,866 | — | 30 |
| May 2017 | — | 4,276 | — | 31 |
| Apr 2017 | — | 3,676 | — | 24 |
| Mar 2017 | — | 3,829 | — | 29 |
| Feb 2017 | — | 4,005 | — | 28 |
| Jan 2017 | — | 1,625 | — | 15 |
| Dec 2016 | — | 0 | — | 0 |
| Nov 2016 | — | 2,111 | — | 17 |
| Oct 2016 | — | 4,576 | — | 31 |
| Sep 2016 | — | 4,191 | — | 30 |
| Aug 2016 | — | 4,371 | — | 31 |
| Jul 2016 | — | 4,448 | — | 31 |
| Jun 2016 | — | 4,434 | — | 30 |
| May 2016 | — | 4,360 | — | 31 |
| Apr 2016 | — | 4,484 | — | 30 |
| Mar 2016 | — | 4,560 | — | 31 |
| Feb 2016 | — | 4,062 | — | 29 |
| Jan 2016 | — | 3,324 | — | 26 |
| Dec 2015 | — | 4,208 | — | 31 |
| Nov 2015 | — | 5,132 | — | 30 |
| Oct 2015 | — | 5,490 | — | 31 |
| Sep 2015 | — | 4,818 | — | 30 |
| Aug 2015 | — | 2,892 | — | 31 |
| Jul 2015 | — | 2,693 | — | 31 |
| Jun 2015 | — | 2,265 | — | 21 |
| May 2015 | — | 3,838 | — | 31 |
| Apr 2015 | — | 2,552 | — | 30 |
| Mar 2015 | — | 2,692 | — | 30 |
| Feb 2015 | — | 2,585 | — | 28 |
| Jan 2015 | — | 2,870 | — | 26 |
| Dec 2014 | — | 2,166 | — | 29 |
| Nov 2014 | — | 2,960 | — | 30 |
| Oct 2014 | — | 2,829 | — | 31 |
| Sep 2014 | — | 3,159 | — | 30 |
| Aug 2014 | — | 2,983 | — | 30 |
| Jul 2014 | — | 2,359 | — | 31 |
| Jun 2014 | — | 2,742 | — | 30 |
| May 2014 | — | 3,113 | — | 30 |
| Apr 2014 | — | 3,361 | — | 30 |
| Mar 2014 | — | 3,755 | — | 31 |
| Feb 2014 | — | 2,717 | — | 26 |
| Jan 2014 | — | 3,369 | — | 31 |
| Dec 2013 | — | 3,812 | — | 31 |
| Nov 2013 | — | 3,376 | — | 30 |
| Oct 2013 | — | 3,939 | — | 31 |
| Sep 2013 | — | 3,943 | — | 30 |
| Aug 2013 | — | 4,189 | — | 31 |
| Jul 2013 | — | 4,076 | — | 31 |
| Jun 2013 | — | 3,306 | — | 30 |
| May 2013 | — | 3,955 | — | 31 |
| Apr 2013 | — | 4,175 | — | 30 |
| Mar 2013 | — | 3,792 | — | 31 |
| Feb 2013 | — | 2,893 | — | 25 |
| Jan 2013 | — | 3,435 | — | 31 |
| Dec 2012 | — | 3,799 | — | 31 |
| Nov 2012 | — | 3,989 | — | 30 |
| Oct 2012 | — | 4,251 | — | 31 |
| Sep 2012 | — | 3,794 | — | 30 |
| Aug 2012 | — | 3,530 | — | 25 |
| Jul 2012 | — | 3,820 | — | 30 |
| Jun 2012 | — | 4,224 | — | 30 |
| May 2012 | — | 3,363 | — | 31 |
| Apr 2012 | — | 3,974 | — | 30 |
| Mar 2012 | — | 4,197 | — | 31 |
| Feb 2012 | — | 3,908 | — | 29 |
| Jan 2012 | — | 4,016 | — | 31 |
| Dec 2011 | — | 3,424 | — | 31 |
| Nov 2011 | — | 3,506 | — | 29 |
| Oct 2011 | — | 4,011 | — | 31 |
| Sep 2011 | — | 3,861 | — | 30 |
| Aug 2011 | — | 3,967 | — | 31 |
| Jul 2011 | — | 3,937 | — | 31 |
| Jun 2011 | — | 3,776 | — | 30 |
| May 2011 | — | 3,931 | — | 31 |
| Apr 2011 | — | 3,793 | — | 30 |
| Mar 2011 | — | 3,918 | — | 31 |
| Feb 2011 | — | 3,089 | — | 28 |
| Jan 2011 | — | 3,704 | — | 31 |
| Dec 2010 | — | 3,504 | — | 30 |
| Nov 2010 | — | 3,674 | — | 30 |
| Oct 2010 | — | 2,826 | — | 31 |
| Sep 2010 | — | 3,595 | — | 30 |
| Aug 2010 | — | 3,638 | — | 31 |
| Jul 2010 | — | 3,286 | — | 31 |
| Jun 2010 | — | 2,615 | — | 30 |
| May 2010 | — | 3,161 | — | 31 |
| Apr 2010 | — | 3,048 | — | 30 |
| Mar 2010 | — | 2,233 | — | 31 |
| Feb 2010 | — | 2,578 | — | 28 |
| Jan 2010 | — | 2,104 | — | 24 |
| Dec 2009 | — | 1,965 | — | 31 |
| Nov 2009 | — | 2,253 | — | 30 |
| Oct 2009 | — | 1,556 | — | 23 |
| Sep 2009 | — | 802 | — | 30 |
| Aug 2009 | — | 1,334 | — | 31 |
| Jul 2009 | — | 1,167 | — | 28 |
| Jun 2009 | — | 961 | — | 30 |
| May 2009 | — | 821 | — | 26 |
| Apr 2009 | — | 330 | — | 10 |
| Mar 2009 | — | 424 | — | 15 |
| Feb 2009 | — | 358 | — | 17 |
| Jan 2009 | — | 367 | — | 19 |
| Dec 2008 | — | 105 | — | 31 |
| Oct 2008 | — | 0 | — | 0 |
| Sep 2008 | — | 0 | — | 0 |
| Aug 2008 | — | 0 | — | 0 |
| Jul 2008 | — | 0 | — | 0 |
| Jun 2008 | — | 0 | — | 0 |
| May 2008 | — | 0 | — | 0 |
| Apr 2008 | — | 0 | — | 0 |
| Mar 2008 | 14 | 106 | — | 31 |
| Feb 2008 | — | 0 | — | 0 |
| Jan 2008 | — | 543 | — | 31 |
| Dec 2007 | — | 228 | — | 31 |
| Nov 2007 | — | 285 | — | 30 |
| Oct 2007 | 1 | 575 | — | 31 |
| Sep 2007 | — | 401 | 14 | 30 |
| Aug 2007 | 9 | 582 | 14 | 31 |
| Jul 2007 | — | 229 | — | 31 |
| Jun 2007 | — | 279 | 14 | 30 |
| May 2007 | 2 | 459 | 15 | 31 |
| Apr 2007 | 3 | 302 | 11 | 24 |
| Mar 2007 | 5 | 400 | 15 | 31 |
| Feb 2007 | 4 | 411 | 13 | 28 |
| Jan 2007 | 3 | 349 | 15 | 31 |
| Dec 2006 | 3 | 493 | 15 | 31 |
| Nov 2006 | 5 | 399 | — | 30 |
| Oct 2006 | 2 | 448 | — | 31 |
| Sep 2006 | 5 | 548 | — | 30 |
| Aug 2006 | 2 | 628 | — | 29 |
| Jul 2006 | 3 | 1,011 | — | 31 |
| Jun 2006 | 2 | 1,130 | 1 | 30 |
| May 2006 | 2 | 1,396 | 1 | 31 |
| Apr 2006 | 7 | 1,487 | 1 | 30 |
| Mar 2006 | 10 | 2,028 | 1 | 31 |
| Feb 2006 | 2 | 908 | — | 28 |
| Jan 2006 | — | 246 | — | 31 |
| Dec 2005 | — | 233 | — | 31 |
| Nov 2005 | 3 | 244 | — | 30 |
| Oct 2005 | — | 234 | — | 31 |
| Sep 2005 | — | 219 | — | 30 |
| Aug 2005 | 5 | 225 | — | 31 |
| Jul 2005 | — | 348 | — | 31 |
| Jun 2005 | 7 | 616 | — | 30 |
| May 2005 | 20 | 1,170 | 1 | 29 |
| Apr 2005 | — | 195 | — | 30 |
| Mar 2005 | — | 203 | — | 31 |
| Feb 2005 | — | 191 | — | 28 |
| Jan 2005 | — | 218 | — | 31 |
| Dec 2004 | — | 215 | — | 31 |
| Nov 2004 | 2 | 228 | — | 30 |
| Oct 2004 | 2 | 245 | — | 31 |
| Sep 2004 | 10 | 467 | — | 30 |
| Aug 2004 | — | 527 | — | 30 |
| Jul 2004 | 0 | 308 | 0 | 31 |
| Jun 2004 | 0 | 276 | 0 | 30 |
| May 2004 | 0 | 315 | 0 | 31 |
| Apr 2004 | 0 | 323 | 0 | 30 |
| Mar 2004 | 0 | 547 | 0 | 31 |
| Feb 2004 | 17 | 1,716 | 1 | 29 |
| Jan 2004 | 0 | 1,565 | 1 | 31 |
| Dec 2003 | 13 | 1,398 | 1 | 31 |
| Nov 2003 | 7 | 747 | 0 | 30 |
| Oct 2003 | 0 | 570 | 0 | 29 |
| Sep 2003 | 2 | 184 | 0 | 30 |
| Aug 2003 | 0 | 250 | 0 | 31 |
| Jul 2003 | 0 | 368 | 0 | 31 |
| Jun 2003 | 2 | 606 | 0 | 30 |
| May 2003 | 5 | 710 | 0 | 31 |
| Apr 2003 | 11 | 1,397 | 1 | 30 |
| Mar 2003 | 10 | 1,387 | 1 | 31 |
| Feb 2003 | 32 | 1,722 | 1 | 28 |
| Jan 2003 | 5 | 1,829 | 1 | 31 |
| Dec 2002 | 0 | 165 | 0 | 31 |
| Nov 2002 | 0 | 156 | 0 | 30 |
| Oct 2002 | 0 | 142 | 0 | 31 |
| Sep 2002 | 0 | 170 | 0 | 30 |
| Aug 2002 | 0 | 204 | 0 | 31 |
| Jul 2002 | 0 | 218 | 0 | 31 |
| Jun 2002 | 0 | 253 | 0 | 30 |
| May 2002 | 0 | 339 | 0 | 31 |
| Apr 2002 | 0 | 417 | 0 | 30 |
| Mar 2002 | 0 | 530 | 0 | 31 |
| Feb 2002 | 0 | 466 | 0 | 28 |
| Jan 2002 | 22 | 622 | 0 | 31 |
| Dec 2001 | 31 | 1,071 | 1 | 31 |
| Nov 2001 | 41 | 771 | 19 | 30 |
| Oct 2001 | 37 | 1,194 | 4 | 31 |
| Sep 2001 | 3 | 1,381 | 3 | 30 |
| Aug 2001 | 3 | 1,498 | 2 | 31 |
| Jul 2001 | 3 | 1,586 | 1 | 31 |
| Jun 2001 | 33 | 1,463 | 6 | 28 |
| May 2001 | 5 | 1,594 | 2 | 31 |
| Apr 2001 | 25 | 1,701 | 4 | 30 |
| Mar 2001 | 3 | 1,003 | 22 | 31 |
| Feb 2001 | 9 | 1,393 | 1 | 28 |
| Jan 2001 | 42 | 1,554 | 1 | 31 |
| Dec 2000 | 7 | 2,000 | 1 | 31 |
| Nov 2000 | 65 | 2,338 | 1 | 30 |
| Oct 2000 | 3 | 1,541 | 1 | 31 |
| Sep 2000 | 1 | 634 | — | 30 |
| Aug 2000 | 3 | 622 | — | 31 |
| Jul 2000 | 2 | 713 | — | 31 |
| Jun 2000 | 7 | 681 | — | 30 |
| May 2000 | 3 | 1,508 | 1 | 31 |
| Apr 2000 | 75 | 579 | — | 30 |
| Mar 2000 | — | 1,014 | — | 31 |
| Feb 2000 | — | 1,578 | 1 | 29 |
| Jan 2000 | — | 1,007 | — | 31 |
| Dec 1999 | — | 2,001 | 1 | 31 |
| Nov 1999 | — | 1,043 | — | 30 |
| Oct 1999 | — | 1,397 | 1 | 31 |
| Sep 1999 | — | 88 | — | 30 |
| Aug 1999 | — | 96 | — | 31 |
| Jul 1999 | — | 81 | — | 27 |
| Jun 1999 | — | 303 | — | 30 |
| May 1999 | — | 884 | — | 31 |
| Apr 1999 | — | 961 | — | 30 |
| Mar 1999 | 4 | 1,539 | 1 | 31 |
| Feb 1999 | — | 616 | — | 28 |
| Jan 1999 | 3 | 1,528 | 1 | 31 |
| Dec 1998 | 2 | 1,199 | 1 | 31 |
| Nov 1998 | — | 47 | — | 30 |
| Oct 1998 | 0 | 48 | — | 31 |
| Sep 1998 | 0 | 49 | — | 30 |
| Aug 1998 | 0 | 479 | — | 23 |
| Jul 1998 | 0 | 627 | — | 24 |
| Jun 1998 | 0 | 583 | — | 30 |
| May 1998 | 0 | 798 | — | 31 |
| Apr 1998 | 0 | 1,678 | 1 | 30 |
| Mar 1998 | 0 | 2,176 | 1 | 31 |
| Feb 1998 | 1 | 1,737 | 1 | 28 |
| Jan 1998 | 0 | 3,060 | 1 | 31 |
| Dec 1997 | 5 | 1,863 | 1 | 31 |
| Nov 1997 | 7 | 1,607 | 1 | 30 |
| Oct 1997 | 3 | 2,030 | 1 | 31 |
| Sep 1997 | 3 | 1,724 | 1 | 30 |
| Aug 1997 | 1 | 1,718 | 1 | 31 |
| Jul 1997 | 18 | 1,115 | 1 | 26 |
| Jun 1997 | 2 | 1,249 | 1 | 30 |
| May 1997 | 0 | 2,059 | 1 | 31 |
| Apr 1997 | 3 | 2,384 | 1 | 30 |
| Mar 1997 | 7 | 2,874 | 1 | 31 |
| Feb 1997 | 16 | 3,657 | 2 | 28 |
| Jan 1997 | 0 | 3,150 | 2 | 31 |
| Dec 1996 | 1 | 489 | — | 31 |
| Nov 1996 | 3 | 844 | — | 30 |
| Oct 1996 | 2 | 1,151 | 1 | 31 |
| Sep 1996 | 5 | 584 | — | 23 |
| Aug 1996 | 10 | 939 | — | 31 |
| Jul 1996 | 8 | 158 | — | 31 |
| Jun 1996 | 3 | 758 | — | 30 |
| May 1996 | 7 | 570 | — | 31 |
| Apr 1996 | 0 | 267 | — | 30 |
| Mar 1996 | 0 | 75 | — | 31 |
| Feb 1996 | 5 | 226 | — | 29 |
| Jan 1996 | 0 | 285 | — | 31 |
| Dec 1995 | 2 | 706 | — | 31 |
| Nov 1995 | 38 | 292 | — | 30 |
| Oct 1995 | 1 | 59 | — | 23 |
| Sep 1995 | 2 | 279 | — | 30 |
| Aug 1995 | 7 | 256 | — | 31 |
| Jul 1995 | 6 | 290 | — | 31 |
| Jun 1995 | 0 | 73 | — | 30 |
| May 1995 | 23 | 379 | — | 31 |
| Apr 1995 | 0 | 67 | — | 30 |
| Mar 1995 | 180 | 575 | — | 31 |
| Feb 1995 | 0 | 862 | — | 28 |
| Jan 1995 | 0 | 367 | — | 31 |
| Dec 1994 | 0 | 388 | — | 31 |
| Nov 1994 | 0 | 360 | — | 30 |
| Oct 1994 | 7 | 531 | — | 31 |
| Sep 1994 | 0 | 383 | — | 24 |
| Aug 1994 | 8 | 77 | — | 31 |
| Jul 1994 | 3 | 288 | — | 31 |
| Jun 1994 | 18 | 275 | — | 23 |
| May 1994 | 0 | 75 | — | 31 |
| Apr 1994 | 2 | 414 | — | 30 |
| Mar 1994 | 11 | 528 | — | 31 |
| Feb 1994 | 4 | 107 | — | 28 |
| Jan 1994 | 1 | 854 | — | 31 |
| Dec 1993 | — | 696 | — | 31 |
| Nov 1993 | 8 | 699 | — | 30 |
| Oct 1993 | 2 | 1,529 | 1 | 31 |
| Sep 1993 | 2 | 290 | — | 30 |
| Aug 1993 | — | 777 | — | 30 |
| Jul 1993 | — | 420 | — | 31 |
| Jun 1993 | — | 46 | — | 30 |
| May 1993 | — | 47 | — | 31 |
| Apr 1993 | — | 55 | — | 30 |
| Mar 1993 | — | 47 | — | 31 |
| Feb 1993 | — | 43 | — | 28 |
| Jan 1993 | — | 61 | — | 31 |
| Dec 1992 | 15,803 | 1,687,487 | 17 | 99 |
A month with no figure filed no volume for that product. Statewide, 535 well-months carry two filings that disagree on the volume with nothing in the record to choose between them; those are excluded rather than guessed.
Location
36.542877, -107.797783 · K-28-27N-09W
New Mexico OCD data, corpus built 2026-08-18. API 04506226.