Exposure corrected images in X-rays (red: 0.2–0.7 keV. green: 0.7–1.1 keV, blue: 1.1–10 keV) of the regions surrounding the WR stars listed in Table 3. Top left: corresponding image from WR40 to WR101. We excluded the images of WR68 whose emission is contaminated by surrounding unrelated diffuse emission. In green and red, the source and background extraction regions are shown, respectively, employed for the flux estimation (Table 3). In yellow, we show the WISE contours only for the most representative bubbles. A magenta cross indicates the position of the WR star.