Table 1: List of TOC equations derived from different properties, each validated with measured TOC from Rock-Eval.

Derived From	Zone	Equation	R2	Trendline Eq. of (TOC_calc vs. TOC_measured)	R2
RHOB	All	TOC=-3.6765*RHOB+10.077	0.4762	TOC_RHOB=0.4794*TOC+0.3487	0.4827
GR, RHOB	All	TOC=6.48+0.004355*GR-2.469*RHOB	0.4942	TOC_GR-RHOB=0.6132*TOC+0.2852	0.5879
Vsh, RHOB	All	TOC=6.52+0.968*Vsh-2.457*RHOB	0.5013	TOC_Vsh-RHOB=0.5276*TOC+0.3161	0.5303
GR, RHOB, NPHI	All	TOC=5.88+0.00484*GR-2.257*RHOB+0.05695*NPHI	0.5032	TOC_GR-RHOB-NPHI=0.6317*TOC+0.2825	0.5862
GR, RHOB, NPHI	All	TOC=8.45+0.006047*GR-3.219*RHOB-1.333*NPHI	0.5264	TOC_ GR-RHOB-NPHI 1=1.0274*TOC+0.5091	0.5496
GR, RHOB, NPHI	1	TOC=7.85+0.00770*GR-3.12*RHOB-0.03*NPHI	0.5646	TOC_ GR-RHOB-NPHI _3zns=0.6865*TOC+0.0929	0.5359
	2	TOC=8.00+0.00473*GR-2.972*RHOB-1.22*NPHI	0.6921
	3	TOC=3.84+0.00237*GR-1.449*RHOB+0.627*NPHI	0.517
GR, RHOB	1	TOC=7.96+0.00763*GR-3.165*RHOB	0.5678	TOC_GR-RHOB_3zns=0.726*TOC+0.2043	0.6687
	2	TOC=6.18+0.00345*GR-2.284*RHOB	0.6851
	3	TOC=6.09+0.00288*GR-2.300*RHOB	0.5026
RHOB	1	TOC=-4.4152*RHOB+12.077	0.496	TOC_RHOB_3zns=0.5276*TOC+0.3161	0.5303
	2	TOC=-3.3486*RHOB+9.2515	0.5781
	3	TOC=-3.3002*RHOB+9.0143	0.433