Positions quoted in this Preliminary Notice reproduced below are referred to WGS84 or a compatible datum and may be plotted directly on this ENC. Some or all of the information contained in this Notice to Mariners may have been included on the ENCs affected. 3806(P)/26 MEXICO —  Gulf of Campeche — Anchorage areas. Wells. Platforms. Obstructions. Buoyage. Foul. Wreck. Radar beacon. Source: Mexican ENC MX384000 1. The limits of the tanker anchorage area, north of Dos Bocas Terminal, have been amended as follows: 2. Zone A, for vessels under 5,000 GRT 18° 45' .0N. , 93° 13' .3W. 18° 45' .0N. , 93° 10' .0W. 18° 42' .5N. , 93° 10' .0W. 18° 42' .5N. , 93° 13' .3W. 3. Zone B, for vessels over 5,000 GRT 18° 47' .5N. , 93° 13' .3W. 18° 47' .5N. , 93° 10' .0W. 18° 45' .0N. , 93° 10' .0W. 18° 45' .0N. , 93° 13' .3W. 4. Zone C, for oil tankers carrying dangerous cargo 18° 47' .5N. , 93° 10' .0W. 18° 47' .5N. , 93° 08' .0W. 18° 42' .5N. , 93° 08' .0W. 18° 42' .5N. , 93° 10' .0W. 5. Numerous new wells, platforms and obstructions exist within areas bounded by the following positions: 19° 30' .5N. , 92° 25' .4W. 19° 39' .2N. , 92° 17' .9W. 19° 36' .2N. , 92° 04' .0W. 19° 29' .4N. , 91° 54' .8W. 19° 17' .4N. , 91° 56' .7W. 19° 07' .8N. , 92° 09' .8W. 19° 05' .1N. , 92° 25' .9W. 6. and 19° 04' .00N. , 93° 20' .01W. 18° 44' .79N. , 92° 38' .34W. 18° 39' .41N. , 92° 39' .08W. 18° 28' .75N. , 92° 50' .33W. 18° 27' .55N. , 93° 16' .16W. 18° 30' .70N. , 93° 20' .00W. 7. A well exists in position 19° 43' .8N. , 92° 31' .6W. 8. Light-buoys in the following positions have been amended to LFl.10s: 18° 43' .65N. , 91° 54' .15W. 19° 38' .3N. , 90° 42' .9W. 9. A foul exists in position 19° 06' .6N. , 92° 05' .2W. 10. A dangerous wreck exists in position 18° 37' .91N. , 91° 51' .12W. 11. A radar transponder beacon, Racon (O), exists in position 18° 43' .6N. , 92° 36' .0W. 12. Mariners are advised to navigate with caution in the area and consult the local port authorities for the latest information. 13. These and other changes will be included in a New Edition of Charts 2626 and 359 to be published late 2026. 14. Chart 1307 will be updated by Notice to Mariners. (WGS84 DATUM)