diff --git a/src/scenes/ShipDeckScene.js b/src/scenes/ShipDeckScene.js
index d9894ed..81c04cf 100644
--- a/src/scenes/ShipDeckScene.js
+++ b/src/scenes/ShipDeckScene.js
@@ -95,15 +95,18 @@ export default class ShipDeckScene extends Phaser.Scene {
         const barrelCount = Math.ceil(this.inventory.fuel / 10);
         if (barrelCount === 0) return;
 
-        // Position relative to deck
-        const baseX = this.deckLeftX + 70;
-        const baseY = this.deckBottomY + 40;
         const barrelWidth = 50;
         const barrelHeight = 70;
         const horizontalSpacing = 60;
         const verticalSpacing = 75;
         const barrelsPerRow = 5;
 
+        // Calculate group width and center it in left half of deck
+        const groupWidth = (Math.min(barrelCount, barrelsPerRow) * horizontalSpacing);
+        const leftHalfCenter = this.deckLeftX + (this.deckWidth / 4);
+        const baseX = leftHalfCenter - (groupWidth / 2) + (horizontalSpacing / 2);
+        const baseY = this.deckBottomY + 40;
+
         // Create barrels in stacking pattern
         for (let i = 0; i < barrelCount; i++) {
             const row = i % barrelsPerRow;
@@ -143,15 +146,18 @@ export default class ShipDeckScene extends Phaser.Scene {
         const barrelCount = Math.ceil(this.inventory.whaleOil / 10);
         if (barrelCount === 0) return;
 
-        // Position relative to deck
-        const baseX = this.deckCenterX + 30;
-        const baseY = this.deckBottomY + 40;
         const barrelWidth = 50;
         const barrelHeight = 70;
         const horizontalSpacing = 60;
         const verticalSpacing = 75;
         const barrelsPerRow = 3;
 
+        // Calculate group width and center it in right half of deck
+        const groupWidth = (Math.min(barrelCount, barrelsPerRow) * horizontalSpacing);
+        const rightHalfCenter = this.deckCenterX + (this.deckWidth / 4);
+        const baseX = rightHalfCenter - (groupWidth / 2) + (horizontalSpacing / 2);
+        const baseY = this.deckBottomY + 40;
+
         // Create barrels in stacking pattern
         for (let i = 0; i < barrelCount; i++) {
             const row = i % barrelsPerRow;