| Vendor | Spec | Unit | Price | Currency | Date |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 874.46 | USD | 20251105 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 874.46 | USD | 20251105 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 1199.13 | USD | 20251104 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 874.66 | USD | 20251104 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 874.66 | USD | 20251104 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 881.77 | USD | 20251102 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 884.59 | USD | 20251102 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 881.77 | USD | 20251101 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 884.59 | USD | 20251101 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 884.59 | USD | 20251031 |