| Administration Department |
| Phone |
+81-3-5978-8021 |
| Fax |
+81-3-5978-8060 |
|
| Marketing Department |
| Phone |
+81-3-5978-8024 |
| Fax |
+81-3-5978-8060 |
|
| Business Development Department |
| Phone |
+81-3-5978-8049 |
| Fax |
+81-3-5978-8060 |
|
| Technical Planning & IT Department |
| Phone |
+81-3-5978-8029 |
| Fax |
+81-3-5978-8057 |
|
| HSEQ Department |
| Phone |
+81-3-5978-8039 |
| Fax |
+81-3-5978-8058 |
|
| Field Operations Department |
| Phone |
+81-3-5978-8036 |
| Fax |
+81-3-5978-8058 |
|
| Geophysical Exploration Department |
| Phone |
+81-3-5978-8028 |
| Fax |
+81-3-5978-8057 |
|
| Geology Department |
| Phone |
+81-3-5978-8038 |
| Fax |
+81-3-5978-8058 |
|
| Research & Development Department |
| Phone |
+81-3-5978-8034 |
| Fax |
+81-3-5978-8057 |
|
| Acquisition Technology Department |
| Phone |
+81-3-5978-8025 |
| Fax |
+81-3-5978-8058 |
|
| Ranzan System Center |
| Phone |
+81-493-63-1237 |
| Fax |
+81-493-63-1240 |
|
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