Exploring the Greaves Refinery area | Mission 7 - The Flooded District Dishonored Guide
Last update: 11 May 2016
If you have chosen variant one to reach the [Greaves Lightning Oil Refinery], you should be starting the exploration of the area in front of the gates (the above screenshot). Search the area for Sokolov's health elixir, grenades and a note (Overseer's Warning). Then, use Blink (teleportation) to go around the first obstacle. If, however, you have chosen the second variant, you will be starting inside the building. In this case, you only need to reach the building's exit. On your way there, you can find food.
Regardless of the path you have chosen, you will reach a medium-sized square occupied by several weepers. Because the enemies are clustered together, you'd better not waste time or resources over them, especially that the only things to find here are gold and food. Therefore, it is much better to move along rooftops, and the other ledges above the ground, and use teleportation to go around the locked passage and reach near the refinery.
New Optional Quest: Find a way inside the Refinery
While exploring, you need to be extremely cautious about river krusts, especially that many of them may be initially overlooked. The creatures are grouped mainly near the water and it is best to use grenades to eliminate them, and especially because you do not need to concerned about being heard by anyone.
As far as the loot in this area is concerned, you can find here gold, food, a rune and two notes (Letter to Stew) (Refinery Safety Notice) that are a sort of a hint on how to solve the puzzle here. It is also a good idea to make use of the control room on the right. Jump inside through the hole shown in the above screenshot, and reach the room with gold, food, Sokolov's health elixir, Piero's spiritual remedy and a book.